RCloud 2.3

Compatible with R 4.*

Features

Assets that start with . are hidden by default. This can be toggled in settings. (#2715)
rcloud.download.file() is more user-friendly: it can infer mimetype and if no content is provided it is read from filename automatically (#2722)
Cells with input (e.g. readline(), debugging) have command history (#1729)
rcloud.encrypt / rcloud.decrypt handle user and group keys (#2759)

Improvements

The session is not reset when loading a notebook or creating a new notebook, if the current session is clean (i.e. nothing has been run). This makes browsing notebooks faster. (#2735)
Sharable Link tooltip shows the view type (#2723)
New Cell buttons are faster (#2731)
Ability to send token in the headers instead in query string, via rgithub 0.9.12. GitHub is sending deprecation emails about this. github.use.query.token defaults false for compatibility with GitHub, and can be set true for compatibility with rcloud-gist-services. Setting rational.githubgist true will also set this flag.

Bugfixes

rcloud.download.file() failed to insert newlines between character vector elements (#2721)

RCloud 2.2.3

Sanitize error messages in notebook.R to prevent reflected XSS (#2727)
Sanitize inputs to Import External Notebooks page (#2728)
Sanitize group and notebook name in Notebook Info popup (#2729)

RCloud 2.2.2

Sanitize rcloud.html input/output:
- Print error message as text not HTML to avoid XSS vulnerability
- Only allow redirects to the same host

RCloud 2.2.1

Sanitize notebook titles in Recent Notebooks menu to prevent potential XSS vulnerability (#2717)
Improve error handling when detecting timeout on RCloud load (#2718)

RCloud 2.2

Features

Cells are automatically activated when in view. There is only one cursor, one selection, and one active line across all cells. The edit button is only displayed in markdown cells, where it only means "toggle source". (#2691, #2682, #2701)
Added authfail.page and tokenfail.page configuration directives that allow for customization of pages that are shown on failed authentication. (#2699)
Added rcloud.web::rcw.parameter() and caching to rcw.parameters() (#2676)
rcloud.html accepts error= query string which will be shown in red. This makes more user-friendly error handling of authentication possible, e.g.:
```
authfail.page: /rcloud.html?error=Authentication failed, please check your login and password.
```

Improvements

Fork an individual notebook from the notebook tree (#2647)
mini.js detects notebook and version, or user and path, in notebook.R URLs (#2650)
Host name is logged to browser console when session starts (#2663)
Command prompt is focused when its language is changed (#2678)
Link to search schema in search panel (#2667)
Added more informative errors and logging when languages are loaded (#2689)

Upgrade considerations

The default for welcome.page has changed to /rcloud.html since we are supplying it as the login page in the RCloud sources. Important: if your installation relied on the old default, you should add welcome.page: /welcome.html to rcloud.conf to restore the old behavior.

Bugfixes

Forking a foreign notebook could fail with the latest rcloud-gist-services (#2679)
Debug output was too verbose, obscuring errors reported by R (#2685)
Welcome message became stale when a new session started; now it is refreshed (#2669)
Session pane could lock up when there is a lot of output, preventing scrolling (#2690)
Notebook content copied and pasted in macOS was invisible due to bad formatting (#1764)
Errors in search are reported (not with enough detail though) (#2670)
Version was not changing in URL when navigating history (#2687); tag was stuck too (#2697)
Ellipsis could disappear when navigating history, making it impossible to show more (#2686)
Recent notebooks were not always colored (#2677)
Service script respect RBIN and ROOT
build_package.sh (and by proxy build.sh) correctly stops if the package was not successfully installed. (#2651)
rcloud.viewer no longer breaks due to an error in cbind in dplyr (#2674)
rcloud.web::rcw.cookies: no longer breaks when there is no Cookies: header (#2698)
proxy.R correctly fails with appropriate 504 error if forwarding failed (#2693)

RCloud 2.1.3

This version was planned but never officially released - changes are available in v2.2

Bugfixes

notebook.R would fail with "no applicable method for rcs.get..." when the token was invalid but user token was set. (#2664)
Version mismatch error was not displaying (#2657)

RCloud 2.1.2

Improvements

Error stack traces are collapsed and include a link to email the trace to the support.email in rcloud.conf
Allow Cookie.domain: * to allow deployments at a-priori unknown URLs (Docker, VMs...)
More date filter selections (last 6 months, last year, etc) (#2643)
Shell cells allow the use of other shells than bash via #!

Bugfixes

Rename confusing tooltip "merge here" -> "merge from"
"Merge from" command should be available for any notebook in the tree (not just current user's!) (#2646)
Fix rcloud.execute.asset() for extensions without explicit drivers (#2645)
Do not evaluate autoscroll logic if there is no scoller div

RCloud 2.1.1 fixes artifacts of 2.1.0

RCloud 2.1

Features

Notebook merging: view the differences between two notebooks and choose which changes to take. (#127)

Improvements

When invoking Run All, the session is not reset if it's still clean (#2589)
Notebook ID (hash) is visible in the Notebook Info popup (#2594)
Errors in loading a notebook via mini.html produce a readable error (#2593)
Notebooks can be run programmatically from R (run cell, run from this cell on, etc.) (#2602)

Bugfixes

Notebook would scroll to show the cursor on autosave, which is distracting (#2428)
Redo key (cmd-shift-Z mac, ctrl-Y windows) was not working (#2630)
Renaming a notebook folder would throw a lot of errors and not display properly (#2598)
If notebook history was showing for any notebook in a folder, renaming that folder would cause that notebook to be put in a folder with a hash name (#2609)
"Remove Folder" dialog was showing extra notebook entries (#2612)

RCloud 2.0.4

Improvement

Jupyter adapter startup can be delayed to improve startup times. The list of languages / kernel specs is cached unless disabled with rcloud.jupyter.delayed.init: disable

RCloud 2.0.3

Improvements

shared.R can look in www/, lib/, or htmlwidgets/ folders of packages, for compatibility with the latest widgets
Other languages are enabled only in IDE mode, since only R is supported for mini.html, Shiny, flexdashboard, etc. This speeds up loading of dashboards.

RCloud 2.0.2 fixes the build artifacts of 2.0.1

RCloud 2.0.1

Bugfixes

Content-disposition field is passed through proxy.R, allowing Shiny's downloadHandler to specify the filename. (rcloud.shiny#28)
Jupyter stdin was hanging (#2585 / #2587)

RCloud 2.0

RCloud 2.0 is compatible with R 3.5. (Due to unknown reasons, R 3.4 was not compatible.)

Features

RCloud now uses Jupyter for Python language support, and supports arbitrary Jupyter language kernels. This means the latest versions of Python (2.7.15, 3.6.5) are supported as separate kernels, as well as new languages like Julia, Scala, and Java. Any Jupyter kernel just needs to be configured with metadata such as the corresponding Ace editor syntax highlighter. See the rcloud.jupyter package for configuration details (#1378, #1334, #2565)
Support for Shiny in flexdashboard (rcloud.flexdashboard#20)

Improvements

Performance improvements to notebook output. Notebook autoscrolling now works reliably and is enabled by default. (Disable in Settings pane if you run into trouble.) (#2551, #2552)
Visual and functional improvements to Dataframe viewer panel: tighter layout, sticky headers, control over paging size. (#2554)

Bugfixes

Assets are maintained in sorted order (#388)

RCloud 1.9.1

Features

Color coding of the items in the recent notebooks menu, to see at a glance which notebooks were opened in the same session. (A session is defined as a period of activity with 8 hours separating it from other sessions.) (#2462)
Autoscrolling of output in the notebook pane - when output from the current cell would leave the screen, the notebook scrolls instead. This feature is still experimental, and is disabled by default - please try it out in the Settings pane and provide feedback! (#2222)
Import and export of Jupyter notebooks, via the new rcloud.jupyter.notebooks package. (#2458)

Improvements

Play button is split into Play and Stop buttons, to avoid accidentally restarting the session and provide a cleaner, simpler interface. (#2442)
Recent notebooks menu fits the height of the browser window (#2532)
Hover over recent notebooks to see the date opened
Incremental search for multiple terms searches for all the terms using AND (#2518)
Support for Shiny showcase display mode, for simple debugging of reactive events. Built-in R debugging also shows the source cell name. (rcloud.shiny#23)
Easier to maintain a solr search index when solr is restarted (rcloud.solr#86)

Bugfixes

New notebooks were shown as hidden (#2538)
Incremental search did not regard username (#2517)
Long cells were not indexed by rcloud.solr (#2547)
Hidden and private notebooks were not removed from Search, and displayed an error (#2533)
rcloud.delete.asset now works (#2420)
Joining cells of arbitrary languages should always produce the expected language (#2361)
Help wouldn't be found if there was leading or trailing whitespace in the input (#1760)
Editing a running cell would cause its output to disappear once autosave kicked in (#2529)
Components moved out of JS global namespace that were causing incompatibilities with other packages (#2524)

RCloud 1.9

Features

New implementation of notebook search (in rcloud.solr package), with improved robustness, ability to constrain by language and asset type, and sensible pagination for notebooks from multiple sources.
Sorting of notebook tree by date (#522)
Filtering of notebook tree by date, i.e. showing only notebook modified in the last week or month (#1817)
Incremental search of notebooks by name (#2391)
Dataframe viewer is paginated, via DT
Case-sensitive and whole-word search in notebooks (#2425)

Improvements

Autocompletion of multiple languages in RMarkdown/Markdown cells (#2429)
Scrolling and more in recent notebooks menu (#2423)
ctrl click or cmd click on the fork button opens the forked notebook in a new tab, without killing the current session (#2441)
alt click a notebook in the Recent Notebooks menu to open it in View mode (#2424)
Pressing tab on editable fields like notebook names and asset names accepts the value instead of cancelling (#2440)
Build script will fail if you don't have npm, unless you specify --no-js. Previously the warning would get buried. (#2438)
Login page (rcloud.html) is included in RCloud distribution

Bugfixes

R Autocompletion works the same as on the R command line, fixing various issues with duplicated text (#645), path completion (#1645) etc. Autocomplete dialog is autosized so that items are not truncated (#1635).
Some concurrency issues were fixed where an earlier version of a cell could be run (#2303) or cells could be run out of order (#2513) if the user interacted with a notebook while it was saving.
Improved error reporting when cell contains an illegal character (#2396)
When an invalid source was specified in URL, the valid notebook sources were not shown and the page hung (#2444)
History of hidden notebooks had inconsistent coloring (#2496)
Hide notebook button looked disabled (#2510)
Recent notebooks menu was behind notebook sizer (#2463)
Pull and Replace dialog was not cleared (#2377)

RCloud 1.8.1

Feature

When using rcloud-gist-services as the notebook backend, it is possible for multiple users to collaborate on a set of notebooks, by putting those notebooks under a shared virtual user id.

Improvements

rcloud.shiny is now self-contained in its own package - /shiny.html forwards to shared.R/rcloud.shiny/shiny.html

Bugfixes

dataframe viewer would crash the UI if the dataframe had only one column (#2445)

RCloud 1.8

See the news for rcloud.htmlwidgets, rcloud.shiny, rcloud.rmd, and rcloud.flexdashboard for compatibility improvements.

Feature

New rcloud-gist-services backend, as a replacement for the GitHub Gist API.
Notes:
- The options github.*.url in rcloud.conf no longer default to github.com
- rcloud-gist-services does not yet support a web interface, so Open in GitHub is not yet available for this backend (#2402)
- See Bugfixes for a list of issues where the GitHub API was not appropriate for RCloud

Improvements

Asset sizes are limited to 2.5MB to avoid performance problems. Notebook assets are only appropriate for small amounts of data, scripts, graphics, etc. Larger data files should be read from disk.
Ability to hide all cell results or selected cell results (#2334)
When selecting a view type from the shareable link menu, the link is opened in a new tab just like clicking the button (#1755)
When there is only one cell selected, clicking it deselects it; i.e. single selection works as a toggle (#2404)
Ability to run only selected cells, by ctrl / cmd - clicking the Play button (#2403)
rcloud.html.out, rcloud.out, rcloud.home are documented (#2372, #2400)
New, optional configuration option solr.post.method allows to change the way SOLR POST update requests are issued. It can have one of the values async (default in RCloud 1.8: asynchronous, internal httr), sync (synchronous, internal - used in RCloud 1.7) or curl (asynchronous external curl command). In the last case another option solr.curl.cmd can be used to change the default invocation of curl.

Bugfixes

rcloud-gist-services fixes some issues we were seeing with GitHub Gist:
- You are now allowed to fork another user's notebook more than once (#1712)
- When you fork your own notebook, history is now preserved (#702)
- We were experiencing race conditions when deleting or adding cells very quickly, resulting in commits being lost. (#32)
- Names of forked notebooks now do not conflict; when forking, they are always given a unique number if the user already has a notebook with that name (#236, #703). Due to the above race condition, we can not fork and then immediately rename with GitHub Gist.
When trying to load a notebook and the session has dropped, the selected notebook should still be loaded (#2139)
Recent notebooks should be shown when initial notebook fails to load (#2369)
Notebook should be saved when clicking Sharable Link (#2371)
Name of notebook in "forked from" link was not getting updated when the notebook name changed (#1716)
Clicking in wrong part of recent notebooks menu could cause the notebooks panel to minimize (#2414)
Only the specific notebooks should fail if some of the notebooks specified to Import External Notebooks are invalid (#2209)
Was not able to copy text from the assets of read-only notebooks (#2401)
Upload button should be disabled when no files are selected (#2390)

RCloud 1.7.1

Improvements

Solr index update calls are non blocking (Requires R 3.3.x)
Make keys for multiple cell deletion safer by changing the Windows shortcuts to ctrl del / ctrl backspace, and MacOS shortcut to cmd backspace shortcuts. Make it harder to accidentally hit the Undo shortcut by adding the alt modifier (now ctrl alt z on Windows/Linux and cmd alt z on MacOS, Redo is unaffected). (#2383)
Arrow keys to move between cells are more conservative. Arrow left/right never go to previous/next cell. Arrow up/down first go to beginning/end of line before going to previous/next cell. (#2381)

Bugfixes

Fix scrolling issues on cell focus, by updating Ace to 1.2.6 (#2379, #2380)
Markdown cells would switch to GCC Machine Description if they contained certain content, making notebook unusable (#2178)
The args argument in rcloud.call.notebook was always treated as a list, making it impossible to use it as a target environment.
Help now works for packages in private libraries as well (#2394)

Features

rcloud.web has been significantly expanded to allow manipulation of the elements, styles, CSS (rcw.attr, rcw.style, rcw.css) as well as registration of event handlers (rcw.on, rcw.off) and evaluation in the context of an element (rcw.in). In addition, it provides functions related to the current document to retrieve URL, cookies and facilitate re-direction: rcw.url(), rcw.cookies() and rcw.redirect().
rcloud.execute.asset has a parameter env= that can be used for R assets to specify the environment in which to source the asset.

RCloud 1.7

In addition to the below changes to RCloud core, this release also supports the following RStudio compatibility packages:

rcloud.shiny 0.4 should be 100% compatible with native Shiny, including file download, data tables, and embedding HTML Widgets in Shiny dashboards.
rcloud.flexdashboard 1.0 supports dashboards using the flexdashboard package, through the new flexdashboard.html selection in the View Types
rcloud.rmd supports import and export of notebooks to the RStudio R Notebook dialect of RMarkdown, including a "Publish to RCloud" action in the RStudio Addins menu.

Features

Pull and replace contents of notebook. It can be helpful to pull the current contents of another notebook and replace the current contents when maintaining multiple "branches of development" , or when collaborating on a notebook, . Pull and Replace from notebook (in the Advanced menu) allows you to pull from another notebook on the same RCloud instance, or from a file. It creates a new version, and it can be undone if needed. (#2285)
Arrow up and down (or left and right) between cells when at the beginning or end of a cell. (#2007)
Option to clear the R session when running the whole notebook (active by default). (#1734)
New configuration option Welcome.info allows runtime-specific content to be added to the welcome message on login. For example, Welcome.info: on `hostname` will show the host used.
Added dev.resize() function for easy resizing of RCloud plots

Improvements

Exporting the notebook to a file or an R source file now exports only the selected cells, by default. You can control this behavior using the "Export only selected cells" option in Settings. (#1880)
To better encapsulate its dependencies, HTML Widgets support is now in a separate package rcloud.htmlwidgets. It is recommended to add this package to the rcloud.alluser.addons config, as shown in rcloud.conf.samp. (#2243)
Ability to open mini.html notebooks by name using &user=...&path=... URLs. (#1034)
Preview PDF files in assets. (#2008)
Closing the find/replace dialog leaves the current match selected (if the notebook is editable). (#2204)
View type of a forked notebook is the same as the source of the fork (#2288)
Keyboard shortcuts f3 / shift f3 (Windows/Linux) and cmd g / cmd shift g for find next / find previous match. (#2192)
Keyboard shortcuts alt r for replace current match, alt a for replace all matches (#2129)
Changing a cell's language leaves the focus in that cell (if the notebook is editable). (#2206)
ESC loses the keyboard focus for the asset pane. (#2221)
shiny.html/mini.html would sporatically fail with _ undefined. (#2348)
session pane output is limited to 10K in order to improve responsiveness and possible crashes when there is a huge amount of output (#1997)

Bugfixes

Attempting to anonymously open notebooks by name would fail with a missing function error.
Find/Replace dialog could show NaNs when the find text was not found. (#2248)
Exported encrypted notebooks would cause a variety of problems, so this is no longer allowed (#1885, #2322, #2343) - in the future we may confirm and decrypt (#2354)
Could not paste into find dialog. (#2308)
Find result was obscured by the current text selection. (#2130)
Find/Replace dialog could get stuck open on Firefox. (#2215)
Find/Replace count was not always shown on Firefox. (#2213)
Find highlights were incorrect on reopening the Find dialog. (#2299)
Pressing right arrow or end shortcut while editing the notebook title cancelled the edit in Firefox. (#1988)
Could not click to position cursor in notebook title or asset name on Firefox. (#2312)
Uploading an unknown file type could cause the file to be downloaded. (#2008)
Revert shortcut was shown when not appropriate (#2220)
Part of the find input was not clickable (#2286)
Could not close find dialog if there were matches and the last cell was deleted while dialog was open. (#2304)
Current notebook was unloaded and unrunnable if loading another notebook failed (#2258)
Plots displayed via the output context were not showing in mini.html (#2278)

RCloud 1.6.1

Features

rcloud.download.file invokes a file download in browsers that support it. See this notebook for a simple example downloading text from a notebook, and this notebook for an example of downloading both text and binary files from a mini.html notebook.
New, easier methods for adding thumbnail images for the discover page. Thumbnails can be pasted, dragged, uploaded from a file, or selected from any plot in the notebook. (#2078, #2217)
Button to clear the session pane. (#1734)
Docker configuration is included in the source.

Improvements

HTML Widgets load faster. (#2231)
By popular demand, the Delete Cell button is replaced. (#2176)
Disconnection in anonymous mode should reload, not attempt to log in (#2237)
Clicking on the RCloud logo navigates to the Edit page. (#2186)
Times on discovery page are shown relatively (time ago). (#2150)
Newly imported notebooks are highlighted in the Notebook Tree. (#1431)
Discover page launches in a new tab. (#2184)
Number of cells selected is displayed in the Selection Bar. (#2189)
Session pane will not autoscroll if it is not currently showing the last line. (#1996)

Bugfixes

Imported notebooks were not showing on discover page. (#2183)
Clicking "cancel" on the New Asset dialog was throwing an error. (#2171)
Cells could overlap tall plots. (#1841)
Starred deleted notebooks were not shown in the All Notebooks tree. (#2165 / #2160 / #2194)
Image assets could overflow the div in Firefox (#2201)
Disabled asset pane would still grab the keyboard focus, causing keyboard shortcuts not to work. (#2218)
Title/tooltips shown for most buttons in the UI, text adapting where appropriate. (#1438 etc.)
Image assets in encrypted notebooks were displayed as garbage text, when opened in a separate window. (#1893)

RCloud 1.6

Features

Multiple cell selection. There is a checkbox on each cell, and a new selection bar at the top of the notebook. You can also click cell titles to select cells (with the usual extend selection behavior for shift and ctrl/cmd clicking). The selection bar allows select all or none, and inverting the selection. Click the trashcan (now on the selection bar) or press the delete key to delete the selected cells; press ctrl k/cmd k to "crop" or keep only the selected cells; ctrl shift i/cmd shift i to invert the selection. (#658)
RCloud now supports many keyboard shortcuts. Press ? with the focus on the window in order to see a complete list of shortcuts (or click the link in the Help panel). Of note are ctrl shift enter to run the entire notebook (#2001), and ctrl shift < and ctrl shift > to go to the next or last cell (among many others). (#300) The shortcut help dialog also shows shortcuts for the cell/asset/prompt editor. (#1870)
New Discovery Page to show most recent and most popular notebooks. You can add thumbnails to your notebooks to be displayed in this view by adding a PNG asset named thumb.png. Recent shows the most recently modified notebooks; Popular shows notebooks ranked by forks plus stars. Suggestions for other recommendation metrics are welcome!
HTML widgets for visualization are now supported in notebooks and in mini.html dashboards. (#1435)
Support exec.auth: as-local configuration option which uses current unix user (i.e., the user running the RCloud server) without authentication as the notebook user. It is intended for single-user local installations with gist back-ends that don't provide OAUTH authentications (such as gitgist).
Add support for serving files from user libraries via shared.R/<user>/<package>. This allows users to develop packages that use shared.R in their own library until it is ready to be released globally. Note that users are still responsible for setting the permissions on the library path - the default permissions are to not allow others (including the web server) access to user libraries.

Improvements

Cells are shown at the full height of all their text, instead of adding a second level of scrolling. This eliminates the behavior where they would suddenly get smaller when activated, and the cursor usually lands at the place that was clicked, or at least not too far away. (#1624)
The initial page load for edit.html is much faster, due to loading the notebook tree asynchronously. We will continue to optimize the page load. (#1781)
Panels are distributed to the left and right side based on their width, so that the notebook area doesn't get too small. If the old "layout by purpose" is wanted, uncheck "Arrange panels by size" in the Settings panel. (#1802 / #447)
Run from this cell to the end of the notebook by shift-clicking the play button, or pressing alt shift enter within the cell. (#1949)
Stylesheets for reasonable styling of print/PDF output (#1783)
One particularly useful set of keyboard shortcuts are undo and redo (ctrl z/cmd z and ctrl y/cmd shift z) to move forward and backward in history. Then press ctrl e / cmd e to revert, or the Revert button in the navbar, to commit the change. These shortcuts only work when the cells, assets, and command prompt are not in focus.
Numerous improvements to find and replace. In particular, the number of results are shown and the first result starts highlighted, and you can press shift enter to reverse-search. It is much harder to get in a state where the search results don't match the current state of the notebook, at least on browsers that are not Firefox. (#1720 / #2082 / #1849 / #1960 / etc.)
Navigating to edit.html when not logged in redirects you to the login page, or reinitializes the access token, instead of displaying an Aw, Shucks error message for something that is not an error. (#2122)
Errors in mini.html and shiny.html are displayed in a dialog (instead of only appearing in the debug console). (#1766)
Warn when forking a notebook a second time has no effect, due to GitHub's policy of returning the same notebook when forked again (#1715)
Display an unambiguous error when trying to run RCloud on IE or Edge, which are currently unsupported. (#1845)
Display a list of valid notebook sources if an invalid source is specified in the URL. (#2004)

API changes

notebook.R passes an additional entry .headers containing the request headers.

Bugfixes

ctrl/cmd-clicking on the New Notebook button opens a new tab with a new notebook (#1733)
ctrl/cmd-clicking a Recent notebook opens it in a new tab (#1777)
Improved matching of code formatting to match look when inactive and in edit mode on Windows and Linux - not perfect but closer (#1266)
Autosave should not scroll assets/notebook/cells (#1622 / #1626 / #1686)
Renaming the folder of the current notebook would not display the change in notebook name (#2046)
Pre-formatted output text from R commands in output context was displaying without line breaks. Output is now consistent with output in notebook cells. (#1719)
Leading and trailing spaces should not be allowed for protection groups and asset names, as it can lead to confusion or deception. Spaces at the ends of notebook names are mostly okay. (#1973)
Allow opening a notebook in GitHub in view mode when running anonymously (#1823)
Allow stopping a notebook in view mode when running anonymously (#1828)
Allow removing your notebook through the UI if it was already deleted on GitHub (#2161)
Switching asset tabs on a readonly notebook was allowing editing, resulting in errors (#1808)
Renaming asset B.png to C.png, and A.png to B.png, resulted in both tabs displaying C.png, due to browser cacheing. (#2148)
Deleting the last notebook in the recently opened list was failing. (#2132)
The run button kept on blinking after the notebook was done! (#1812)
The notebook tree would sometimes highlight the current notebook in a different tree from the one that was clicked. (#1905)

RCloud 1.5.3

Improvements

rcloud.message.dialog for system messages or whenever you want an official-looking dialog to pop up and say something. (#91)
The "RCloud Sample Notebooks" folder in the notebook tree now opens directly on the list of notebooks, rather than showing the list of "featured users" (an all-user option). This happens if there is exactly one "featured user"; if there is more than one, then the list of users is shown as before (and as in the other roots of the notebook tree). (#1867)
rcloud.upload.path gains ... which can supply additional path components.
New configuration option use.gist.user.home if set to yes allows deployments to use gist username as the executing user for purposes such as home directory location. It only applies if exec.auth is not set.
Compatibility with newer 32-character GitHub gist IDs.

RCloud 1.5.2

Features

Added support for sessions - the information about a session can be retrieved using rcloud.session.info()
Output contexts can be created using rcloud.output.context for creating cell-like output in a mini-html notebook. This allows simple output of plots to a notebook with a custom layout, while supporting the resizing and plot export UI of a notebook cell. (#1669)
Support for HTTP Basic Authentication for SOLR search. (#1794)

Improvements

rcloud.session.log function for sending messages straight to the session info pane or debugger console.

Bugfixes

updated sourceURL syntax for debugging javascript in the browser

RCloud 1.5.1

Bugfixes

Converting a notebook to encrypted would fail if the notebook contained binary assets (#1616)
Forking a foreign notebook (from a different gist source) with a binary asset would fail (#1606)
Anonymous users had no RCloud home even if exec.anon.user is, specified which caused issues (among other things) with file upload (#1709)
Redirects through the login page did not work in proxified setup, most notably re-authentication on links containing a notebook ID would lose the notebook reference by the time the user was authenticated (#1419).
Markdown and RMarkdown containing deferred results were formatted as mangled mailto: links under compute separation (#1676 / #1725)
If loading any assets for the RCloud page timed out, no message was displayed (#1710)

RCloud 1.5

Features

RCloudDevice now supports locator() and thus the usual point+click R tools like identify(). An active locator is identified by a blue border of the plot and a crosshair cursor. To add points left-click on the plot, to end/abort a locator request use the <ESC> key. Note this is only avaliable in R cells (other cells like Markdown don't use RCloudDevice).
Basic support for shell cells is now included. Note that each cell is a separate shell, so environment variables cannot be passed across shell cells. However, environment variables set in R will be inherited by the shell so R cells can be used to define them. Scripts are executed using bash.
Recent notebooks menu provides access to recently opened notebooks.
New function rcloud.flush.plot() allows explicit finalization of a plot -- this is in particular useful in loops where RCloud cannot detect automatically that a plot has been finalized and plot output is combined with other output. It is called automatically between cells.

Improvements

The root of RCloud homes is now configurable using rcloud.user.home configuration directive in rcloud.conf. The function rcloud.home() should be used to retrieve paths in user's RCloud home directory.
The list of all-user extensions is now controlled by a simple rcloud.conf key, rcloud.alluser.addons, instead of by an RCS key populated from rcs.system.config.addons. This allows multiple RCloud instances to use the same RCS instance with different settings. (#1666)
Proper "aw shucks" error message for bad notebook source. (#1699)

Bug fixes

In case a gist back-end token became invalid the login would fail with an error instead of re-authenticating. Note that this is a rare case where the cookie contains a valid RCloud token, but the back-end no longer honors the underying stored token.
Large assets stopped working after a GitHub Enterprise update since it introduced re-directed raw links which was not supported. (#1658)
Conversion of encrypted notebooks with binary assets to public was failing on public GitHub. (#1665)
The asset panel wasn't getting immediately resized when the column was resized (#1623)
Second ctrl-A wasn't going to the absolute beginning of the line (on Mac). (#1625)
Empty and blank group names were accepted. (#1689)
Promoting a protection group user from member to admin caused the user to lose all membership. (#1696)
Find and replace was making read-only notebooks appear writeable, even in view mode. (#1672, #1681)
RCloud was making erroneous requests for /vector and /[object%20Object], causing 404 errors. (#1663)
Foreign notebooks could not be Opened in GitHub from view mode (#1697)
Large images were overlapping other panes in the Asset Viewer (#1660)
Long names were escaping the notebook info popover. (#1593, #1637)
Misplacement of settings panel scrollbar. (#1634)
Spaces were retained at end of Disable and Enable Extensions options, causing silent failure. (#1693)
Odd message on closing the Manage Groups dialog. (#1641)
Bad line breaks in types in Workspace panel. (#1642)
Clipboard copy was adding the text to the end of the page in view mode. (#1648)
Locator and rcloud.html.out flush plots first thing when invoked. (#1691)

RCloud 1.4.3

Features

Fork and remove folders. Fork and remove commands appear next to folders - you can fork anyone's folder of notebooks, and you can remove an entire folder of your own notebooks. When editing a folder name, you can press ctrl/cmd-enter to fork that folder under the new name. (#1149 / #716)

Improvements

Navbar in view mode scrolls away, leaving more room for content (#700)
RCloud detects when the compute process dies, and asks if you to reload the notebook (#1601)
Clicking on any code within the markdown output causes the code to be shown (partial fix for #1607)
Manage groups dialog shows the actions that will be performed.

Bug fixes

When assets are large, or the total size of a notebook is large, GitHub could truncate them and require another request to get the content. This could cause protected notebooks to become inaccessible, and also caused notebooks to open with apparently blank assets/cells. githubgist now automatically loads the content. (#1496, #1578, #1631)
Compute session could get disconnected from its notebook content, causing cell execution to have no effect, when forking or importing another notebook (#1602, #1632)
RCloud terminates the compute process when the control process dies, so that resources are released. (#1605)
Automatically-loaded stylesheets rcloud-*.css were not getting loaded due to wrong MIME type (#1628)
Long notebook names could cause navbar layout problems, obscuring part of the notebook. (Now the title truncates in response to window resizes, and does not get tall until the windows is less than about 850-950 pixels wide.) (#972)
Settings panel was showing "Reload to see changes" when text fields were clicked on but not changed (#1611)
Help search box was not taking loaded packages into account with compute separation. (#1604)
Display the relevant error message (instead of a catch-all) when loading a notebook fails in view mode. (#1638)
On inaccessible notebook in URL, wait for dialog to close before loading another notebook. (#1647)

RCloud 1.4.2

Improvement

Since the protected notebooks feature does not seem to be entirely stable, especially in interaction with large notebooks and assets, we have introduced a flag in rcloud.conf disabling the feature. If rcloud.conf contains the key disable.notebook.protection (with any value), existing encrypted notebooks can still be opened, but the UI is disabled and the protection status of notebooks can't be changed. (#1580)

RCloud 1.4.1

Bug fix

An API change in RClient.create was not backward compatible, breaking notebooks which embed the JavaScript that connects to the RCloud server (#1598)

RCloud 1.4

Features

Protected notebooks. You can encrypt your notebooks and make them readable only by you or only by a select group of users. Protected notebooks will not be seen in the search results (although pre-encrypted versions of the content may be).

View or modify the protection of a notebook through the notebook info command in the notebook tree. If you own the notebook, the protection will be a link which open the Notebook Protection dialog. From here you can assign the notebook to any group you are a member of, or make it private only to yourself. The second tab of the Notebook Protection dialog allows you to create groups, rename groups, and assign other users as administrators and members of the groups you administrate.

View notebooks on other RCloud instances. The configuration file now allows configuring multiple git/github-based notebook stores with gist.source names. Specifying that name in the URL with &source=name loads the notebook from the other instance. Search has an option to search "All Lakes", i.e. all sources. For this release, all notebooks get displayed in the same tree; notebooks which are "foreign" get displayed in green and are read-only. You can fork and star notebooks from other instances; however, you can't comment on them.
Stop execution of cells. Clicking the stop buttion in the navbar now sends an interrupt to the R process and terminates execution (when possible).
Binary assets: you can now upload binary files to notebooks. The content is automatically detected and transparently encoded and decoded using base-64 encoding. Where possible, the asset is displayed in its native format in the asset panel. Assets are currently limited to 750KB. (#683)
Navbar menus are customizable, e.g. to display help or other resources in the area around the Advanced menu. (#1313)

Improvements

running a cell causes the whole notebook to save, e.g. you don't need to explicitly save an asset before running the cell that uses it (#1597)
rcloud.shiny and rcloud.dcplot are independent packages which can be versioned/updated separately. any style sheet customization of rcloud.dcplot should be loaded manually using rcloud.install.css after rcloud.dcplot is loaded, instead of relying on the automatic "rcloud-*.css" hook. (#1371)
toggle results for each cell, helpful when results are long and it's hard to find the next cell (#1487)
hide all view.html ui elements, including cell status elements, on &quiet=1 (#1449)
Rename folders of notebooks. Clicking on a notebook folder the first time opens the folder. Clicking on the name a second time starts editing of that name (and any higher levels of the folder name). (#1393)
New cell states to make enqueued execution clearer: if you change a cell when it is enqueued to be run, its state will turn to "unknown" (purple question mark) indicating that the result may not match the code in the cell. When it is running, it will display a spinning question mark. And when it has finished running, it will return to the "ready" state (empty circle) instead of the "complete" state, indicating it still needs to be run for the current code to be reflected in the output and state. (#1474 / #1456 / #1445 / #1436)
New Notebook Prefix setting allows changing the prefix for new notebook names, e.g. to put new notebooks in a folder to keep the top level less cluttered. The default remains "Notebook ". (#885)
multi-line command input is indicated with + as in command-line R. (#620)
workspace panel is not updated if it is collapsed
highlighting and syntax checking for html (#1387)
ctrl-A and ctrl-E go to the beginning and end of actual line, not the wrapped line (on Mac) (#1417)

Bug Fixes

autosave was causing long cells to scroll (#1386)
forking a notebook by renaming and pressing ctrl-enter, but not changing the name, should default to incrementing the number (#1548)
fixed another edge case of message fragmentation where messages of exactly the wrong length would cause R-JavaScript connection to break
improve markdown formatting #1502
leaving a text field setting commits the change. (ESC still cancels, and Enter also commits.) #1523
multiple password prompts executed seqentially could hang RCloud (#371)
do not allow empty notebook path parts (#1491 / #1492)
Python errors are now detected by the notebook, displaying the proper status and cancelling further cell execution. (#1433)
empty Python cells could case RCloud to hang (#1403)
restores error messages (like notebook not published) in view mode (#1424)
tagged versions of notebooks were not available in view mode (#1369)
fixes special html characters (such as Press <enter> to continue) in text input prompt. (#1383)
fixes broken help with R 3.2.0 (#1482)
fixes cases where forked notebooks within folders ended up with the same name as the original. (#1277)
fixes cases where the text input prompt was truncated in view mode (#1453)
redirects through the login page return to the same page that was requested. (If a custom login page is used, it should take ?redirect= as a query parameter, and POST the same value to login.R when submitting the username and password.) (#1419 / #1282)
various connectivity problems were fixed, caused by fragmentation of messages from the client to the server
equations are properly displayed in RMarkdown cells (#1377)
clicking to edit a cell which is scrolled hits the intended line (#1358)
fix oversized left margin for markdown (#1401)

Plugins

Workspace viewer

the dimensions of data frames are now shown in the overview
functions arguments are shown without the preceding function keyword to save space

RCloud 1.3.4

Catches errors in Workspace viewer when an object errors in str()
Fixed an error when Cairo device is used outside of the RCloudDevice context. (#1427)
Prefer the file extensions defined in RCloud language extensions over what GitHub infers, because sometimes it gets the language wrong. (#1412)

RCloud 1.3.3

Do not load rcloud language and ui extensions when doing a notebook.R call.
Added http.static.nocache configuration entry governing the use of no-cache headers for statically served content. The default is now no, which means the browser is allowed to cache static content. RCloud 1.3 through 1.3.2 used yes which can cause unnecessary load on the servers if there are no changes to the static content.
Fixes a bug where line breaks were missing from content copied from inactive cells (#1389)
Fixes a bug where only the first line is copied when copying cells in Firefox (#1413)

RCloud 1.3.2

Some reserved characters were not getting uri-encoded, resulting in passwords failing.

RCloud 1.3.1

Features

Cell Run State Indicator. Status messages such as "Cancelled!" and "Waiting" are no longer displayed in the result area. Instead, an indicator resides in the bar above each cell:
- Open circle means the cell has not been run.
- Blue arrow means the cell is enqueued to run
- Blue spinner means the cell is running
- Green light means the cell ran and succeeded.
- Red explamation point means the cell had an error
- Orange splat means the cell run was cancelled
This also helps with confusion with whether a cell has run when it doesn't produce output. (#1207, #1264)
Non-preemptive stop. Although you still can't cancel a long-running cell, you can stop any later cells from running, by pressing the Stop button.
Options to enable and disable extensions per user. The Settings pane has "Enable Extension" and "Disable Extensions", which set the user options addons and skip-addons, respectively. On starting the session, any extensions listed in skip-addons are not loaded. (#1346)

Improvements

"Subscribe to Comments" option is not shown if this feature is not configured on the server. (#1347)
Editable cells are always (lightly) colored (#1322)
Simplified, more correct workspace value printing
When plots are too wide for the middle column, they scroll horizontally. (#1239)
Settings that require a page reload tell you so when you make the change.
Customizable logo for view.html
Use line breaks when printing R stack traces (#1360)
Controls in status area slightly greyer to distract from code less.
Option to turn cell numbering off (#1213)

Bug Fixes

Patch to fix unauthenticated logins with view.html, shiny.html, notebook.R
Patch for missing fork_of
Hide subscribe to comments option if server not configured (#1347)
Fix a case where backspace still would go back a page with some elements focused
Fix a case where clicking on the last non-readonly notebook would edit the title (#1357)
Fix bug where cell would overlap next cell or command prompt would appear on top of cell (#1352, #1354)
Fix cases where extensions could cause non-GUI applictions to break
Fix bug where asset would still be shown if current asset is deleted (#1343)
Restore previous size and do not report (harmless) error when plot is resized too small (#1337)

RCloud 1.3

Features

Simultaneously view code and output. Instead of switching back and forth between code and output, most cells always show both the code and the output. Output is shown when the cell is run. Click on the code to activate the cell's edit mode.

Markdown cells behave slightly differently - since the markdown output already contains the code, the code editor is hidden when the markdown is run. Click on any code within the markdown output, or click on the cell's edit mode button to activate it.
Direct output and input. Instead of printing a single result for each cell, the output is handled asynchronously, so it shows as it is available. The code can also request lines of input, so e.g. readline now works - as do browser and debug for debugging! Ordinary code cells do not use knitr/markdown for output, but send images, preformatted, and html output separately.
Ability to save plots in other formats. Hover the mouse over the plot for the disk icon to appear in the upper right corner, which contains a list of available image formats. A widget at the lower-right corner can be used to resize the image.
Search and replace across all cells in a notebook. Ctrl/Cmd-F opens the find bar at the top of the notebook. Type to search incrementally.

Ctrl-H (Windows/Linux) / Cmd-Option-F (OSX) opens the replace bar.

Search in results not currently supported.
New simplified look. Cells do not activate the editor until they are clicked on, so they use much less resources, and notebooks with a large number of cells load quickly.
Automatic indentation for R code (#1110) and Python (#1105)
Many ways to write extensions to add to the RCloud user interface. Documentation.
It is possible to add cell languages - Python, RMarkdown, and even R evaluation are performed by language add-ons. https://github.com/att/rcloud/wiki/RCloud-Language-extensions
Experimental support for RMarkdown cells. The old Markdown cells use the markdown and knitr packages directly for output; RMarkdown cell use rmarkdown (a.k.a. R Markdown v2).
Option to receive email updates when your notebook is commented on (#900)
Notebook Information pop-up shows the people who have starred a notebook (#935)
Select the entire notebook with ctrl/cmd-A (#1321)

Improvements

Animated icon when first loading the page (#1028)
Better help given when searches fail due to syntax errors (#1061)
Year shown in version and notebook dates when the year is not this one (#986)
Ability to right click on search results to open in new tab (instead of control-clicking) (#1054)
Shareable link uses tagged version instead of version, if it exists (#1044)
Formal arguments shown for functions in Workspace (#994)
Option to turn off terse dates (#1040)
Cell number is shown above each cell in its status area (#1126)
shared.R can be used to serve static content out of of the www/ folder of any installed R package. (#1147)
redis database number and password can be set
Can grab the status area above cell as well as the gutter area in order to reorder cells. Allows moving cells when not editing them
Clicking to edit cell sets the cursor position based on the click location
Supports PAM and JAAS supported Authentication modules like Kerberos, LDAP, etc. Refer: https://github.com/s-u/SessionKeyServer/blob/master/README.md
Custom R code akin to the ubiquitous Rprofile can now be run at the end of session initialization as the script conf/Rcloud.profile
Selection of the cells and results will not select the ui elements, so it's possible to copy and paste whole sections of the notebook and results. (#1221)

Bug fixes

Changing the working directory is now persistent across R cells (#833)
Dataframe was not cleared when loading a new notebook (#1045)
Comments were not getting deleted from search (#826)
Loading notebook by ID failed when there was whitespace (#1115)
Notebook wasn't saved before forking (#1083)
Importing a notebook would cause the browser title to change (#1168)
Messages from the server could get fragmented and produce "Invalid typed array length" error or silent failures (#1135)
Issues with knitr creating duplicate plots fixed (#1046)
(Mis)feature where a prior notebook is loaded if the current notebook can't be, restricted to problems with loading the notebook.

RCloud 1.2-patched

Bug Fixes

Encoding of some characters was failing in the login script, leading to authentication failures with valid passwords

Improvements

Retrieval of multi-user information from RCS was vectorized, dramatically reducing the number of round-trips to RCS store and associated latency.

RCloud 1.2.1

Bug Fixes

Smaller file upload packet size to avoid Rserve disconnection bug
Do not check python idle state
Workaround for varying fork_of github interface
Error when deleting currently-loaded notebook (#1049)

RCloud 1.2

Features

The script scripts/mkdist.sh, which produces a tarball of RCloud and all its dependencies (e.g. for off-line installation) has been consolidated into scripts/bootstrapR.sh --mk-dist
Multiple file upload. File upload interface has been modernized to use promises and to split the UI from the back-end.

RCloud.UI.upload_with_alerts(to_notebook, options) takes the place of the old functions rcloud.upload_to_notebook and rcloud.upload_file. All its UI elements are configurable. By default it will send messages and confirmations to the Upload Files pane in edit mode, and to the main output div in view mode. Upload can also be enabled in published notebooks running anonymously through the technique in this notebook.

In addition, there are lower-level JavaScript upload functions when you don't want the use of Bootstrap alerts. RCloud.upload_files and RCloud.upload_assets, which return promises instead of using a callback, take a react struct for progress messages and overwrite confirmation.
The notebook store is now abstrated through the gist package, allowing arbitrary back-ends. The traditional GitHub Gist backend is now handled by the githubgist package. Alternative back-end based on local git repositories is implemented in gitgist. The back-end is selected by the gist.backend configuration option. It currently defaults to githubgist but it will eventually become a mandatory option.
notebook.R allows trailing paths to be processed by the notebook code (instead of asset lookup) if they start with /.self/. The subsequent path part is passed to the run function as the .path.info argument. This allows notebooks to handle full tree structure on top of a single notebook URL, .e.g.: https://rcloud.mydomain.com/notebook.R/user/notebook/.self/foo/bar will call the notebook with .path.info set to /foo/bar. Note that the .self part distinguishes asset lookup from a path info call.
Search UI improvements. Search results are paginated for improved navigability and performance. Search results show all results within each notebook. (If there are many results, they are hidden/shown inline with a "show more" link.) Search results can be sorted by user, notebook name, date, or stars, in ascending or descending order. Improvements to display of result line numbers and comment results.
Tagged versions: instead of using hexadecimal hashes for notebook versions, you can tag them by clicking a second time on the version in the history in the notebook tree, and entering a human-readable name. You can also load a notebook version by specifying &tag=name instead of &version=hash in the URL (works with {edit,view,mini,shiny}.html; notebook.R not supported yet). Each version can only have one tag, and each tag can only have one version: if a tag is reused, it is removed from the previous version. Enter a blank tag (delete the tag and press enter) to remove it.
Actions are logged on the server side using Rserve's ulog.
Preliminary RStudio Shiny support via rcloud.shiny package. rcloud.shiny emulates a network connection to run Shiny on an RCloud server and client instead of Shiny Server. Basic functionality is supported, but Shiny extensions are not supported yet.
It is possible to create custom side panels for RCloud edit mode.
Add-on packages can be loaded per-user (RCS key <user>/system/config/addons) or for all users (.allusers/system/config/addons). These packages are loaded at the beginning of each session, and have access to the RCloud UI (via ocaps) to add side panels or other UI elements. See the example rcloud.packages/rcloud.viewer
Workspace Viewer - shows variables in the environment and their current values.
Dataframe Viewer - View(dataframe) will show the contents of the dataframe in the Viewer side panel.
Forked-from notebook shown below notebook title, with link to the original notebook. Since github gists do not allow forking one's own notebooks, emulate the fork_of value for self-forked notebooks.
shared.R allows packages to serve files via URLs.
Select the type of view (shareable link) for each notebook by using the drop-down menu to the right of the Shareable Link button.
RCloud Sample Notebooks folder in the tree, to feature certain users and their example notebooks.
Initialize RCS keys under .allusers/system by adding rcloud.conf entries rcs.system.*

Improvements

Disabled backspace as a shortcut to the back button to prevent some accidental navigation away from RCloud
MathJax is installed directly into the htdocs/ directly, to speed startup and make RCloud easier to install in private intranets.
Delete and edit comments. Multiline comments are allowed, and newlines are displayed properly in comments.
Date and time of notebook versions are shown in a minimal but more informative format, displaying only the parts that are different from the previous version.
CSS highlighting and syntax
Improved, more consistent control styles.
Ctrl-S and Cmd-S now save the notebook rather than invoking the browser's save command
It is possible to disable the command prompt, which is confusing to some users. The option is in the new Settings panel.
Insert cell button inserts a cell of the same language as the cell below it.
Default language for final insert button is saved per-user.
Shortcuts for forking notebooks. When changing the title or tagging a version of a notebook, press ctrl/cmd-enter to fork.

Bug fixes

Assets without filename extensions are allowed.
Error message for attempting to rename an asset over another one.
Downloading of files (Export Notebook / Export as R Source) now works in Firefox.
Fixed a bug where arrow keys were captured by the notebook so the selection could be moved off the current notebook.
Fixed a glitch where notebook comman\ds could take more than one row to display; hide date entirely when showing notebook commands, and don't show the commands when hovering over notebook versions.
Fix to error propagation for notebook.R when an asset does not exist or the notebook is not published.
Fixed URL for Sharable Link of notebook version.
Fixed Unicode support (for assets and everywhere) - repair mismatch between JavaScript UTF-16 and R UTF-8 strings.
Save asset before renaming it - changes were getting lost.
When a notebook fails to load, the previously loaded notebook gets loaded. This could cause a near-infinite loop when there is a problem that causes no notebooks to load, so this behavior is now limited to trying 5 notebooks.

RCloud 1.1.2

Set CRAN mirror repos option if not already set to avoid interactive prompt. The default will be either CRAN.mirror entry from rcloud.conf or http://cran.r-project.org if not specified.
Fix crash on Safari where RCloud would keep trying to open earlier and earlier notebooks
Resizeable side panels. Temporarily gives you more room to work on assets or read help. Lasts until a panel is opened or collapsed.
Fixes bug where asset editor did not always size to fit its panel.

RCloud 1.1.1

Properly handle failed connections (was throwing in an error handler). Add require dependency rserve -> underscore.
Fix reset links in wdcplot charts.

RCloud 1.1

main.html has been renamed edit.html. Currently main.html redirects to edit.html, but this will be eventually removed.
DEPRECATION: the flat-file backend for RCS is to be considered deprecated. In future releases we will only support the redis backend.
Cascading style sheets held in assets will only be loaded if the filename matches rcloud-*.css.
rcloud.install.js.module now takes an optional boolean parameter force to force reloading, to help with JS development.
view.html and main.html now support referencing notebooks by name. Use, for example, view.html?user=cscheid&path=tests/project1/notebook1.
Python cells are now supported. They are executed in a separate process using IPython. This requires rpython2 R package from RForge.net and corresponding IPython packages in the Python installation.
RCloud now uses RequireJS for loading JavaScript libraries. This makes it far easier for RCloud packages to use external JS libraries, and in particular allows upgrading wdcplot on the fly. You can also use require to load JS libraries stored as assets, by using the link in the asset pane.
Ability to fork any notebook, even if it is your own. The navbar always displays the fork button, and will also show a save button if the notebook is yours, or a revert button if the notebook is yours on a prior version. Caution: currently when you fork your own notebook, the history is lost; we hope to fix this soon.
Confirmation dialog on removing a notebook.
The navbar now displays the notebook author and whether the editor is in read-only mode.
The browser title now includes the notebook name.
Drag individual files onto the asset pane in order to upload them as assets.
Press cmd-enter or ctrl-enter in the comment area to submit a comment.
Rename assets by clicking on the filename.
Lux and dcplot are now "RCloud packages". They are installed automatically by fresh_start.sh (and build.sh), but any notebooks that use wgeoplot or wtour will need to require(rcloud.lux), and andy that use wdcplot will need to require(rcloud.dcplot).
Fixed an issue with arrays in wdcplot expressions, and arrays can now contain wdcplot placeholders (e.g. dataframe columns).
Fixed an issue where downloaded files were being named download.
Fixed erroneous cell results where there were no cell results.
The asset editor now has a JavaScript mode.
Fixed a couple of issues with R code completion.

Installation/Administration

RCloud configuration now defaults to using a single port for both HTTP and WebSockets. This simplifies many things since there is now only one place to configure the port (rserve.conf), only one port to forward when needed and only one connection to setup TLS for if needed. However, it requires more care when using a reverse proxy since it has to also proxy WebSocket upgrade requests accordingly.

RCloud 1.0.1

Bugfixes

Fixed issue where nothing would work if no notebooks were starred (#630)
Fixed bug that prevented code completion from working past the first token (#645)
Fixed issue where typing in the prompt could cause the notebook to "bounce" up and down (#634)
Fixed issue where image width was sometimes getting set to zero (#633)

RCloud 1.0

Features

Major interface update with side panels
Help panel, showing R help as well as paged output such as data()
Asset editor / scratch pane. Pressing Cmd-Enter (or Ctrl-Enter) executes the current line or selection as a new cell.
Search notebooks, with notebooks indexed using SOLR
Session info panel displays stdout/stderr messages, as well as errors. Custom messages can be displayed with rcloud.out.
People I Starred tree shows all notebooks of people whose notebooks you have starred. My Notebooks are in a folder just like anyone else's, to reduce clutter.
Notebook is automatically saved when navigating away from the page, and when any operation changes the notebook.
Ability to change cell language
URL now updated to include notebook ID and version
Notebook lists and options are now stored with fine granularity in RCS, so that multiple sessions are less likely to interfere with each other
Revamp of JavaScript code to use promises for improved asynchonous operation and robustness. In addition, most JS errors are shown in the session info panel.
Export notebook as R source
Split and join cells
Reorder cells by dragging and dropping the handle in the left gutter
Click to edit source of already=run cells
Instead of creating a new notebook when deleting the current notebook, the most recent notebook is opened
Change notebook name by clicking on the name in the notebook list or the navigation bar

Bugfixes

Too many to list

RCloud 0.9.2

Features

RCloud branch and revision are now displayed on startup (#277). The scripts/build.sh script updates the REVISION file used for this. Previously, only the distribution script created that file.
Logout page includes a link to GitHub logout as well (#294) Note that the default for goodbye.page has changed to /goodbye.R
Users can get a notebook asset by name via the rcloud.get.notebook.asset function. This is useful for getting to files that have been uploaded to the notebook without needing to go through the GitHub URL.
Users can control warnings via the rcloud.disable.warnings and rcloud.enable.warnings functions. This controls warnings for the current RCloud session, and is not reset after each evaluation (which happens, say, with options(warn=-1)). By default, warnings are displayed, as before.
Users can export a notebook as a single R source file via the 'Export Notebook as R Source File' button in the Advanced menu.
Users can control echoing via the rcloud.disable.echo and rcloud.enable.echo functions. When echoing is disabled, the commands themselves do not appear in subsequent evaluation calls (notice that the call to rcloud.disable.echo itself still appears..) By default, echoing is enabled, as before. In addition, the option &quiet=1 to view.html now calls rcloud.disable.echo() before any evaluation, mitigating the flashing of code described here.

bugfixes

Empty markdown cells no longer cause an error (#173)
Improved notebook update speed when there are many users/notebooks (#264)
Loads MathJax by HTTPS to allow use in HTTPS deployments (#309)

RCloud 0.9

Features

RCloud now supports anonymous access to with user switching. When user switching is enabled (Exec.auth), then execution token will be honored even without GitHub tokens. In addtion, fully anonymous access (no tokens at all) will be allowed if Exec.anon.user configuration is set and anonymous users will switch to that account.
There is now a deployment script scripts/mkdist.sh which takes the current checkout, computes and downloads all dependency packages and creates a distribution tar ball containing a repository of dependend packages and the RCloud distribution.
Feature: notebook.R HTTP entry point added. It uses path.info to match a notebook name and (optionally) a file within the notebook. Possible uses:
```
   /notebook.R/<notebook-hash>
   /notebook.R/<notebook-hash>/<version-hash>
   /notebook.R/<notebook-hash>/<filename>
   /notebook.R/<notebook-hash>/<version-hash>/<filename>
   /notebook.R/<user>/<notebook-name>
   /notebook.R/<user>/<notebook-name>/<filename>
```
To avoid ambiguity usernames should not match exactly [0-9a-f]{20} and filenames should not match exactly [0-9a-f]{40} since hashes have higher priority than names.

All above uses that end with <filename> will attempt to fetch the file of that name from the notebook. All other uses call the corresponding notebook, i.e. return the evaluation result.

KNOWN BUG: notebook.R currently ignores all RMarkdown cells, so if you mix R content into your cells, they will currently be ignored.

NOTE: notebook.R supersedes call.R, file.R and by.name.R that existed in the development version performing partial opeartions.
Convention: the notebook.R entry point is used for general RPC into R. Documentation for notebooks that are intended to be used as notebook.R targets should be in the form of RMarkdown cells, so that view.html?notebook=X shows the documentation for notebook.R/X.
Feature: the HTTP server supports partial path matching, .i.e, /foo.R/bar/gee can match foo.R file in which case the rest of the path is stored in path.info and foo.R is evaluated. If the path is a complete match, path.info is NULL. In both cases self.path variable will contain the path that matches the path to the script being run.
Feature: tmpfile result type is now supported in rcloud.call.FastRWeb.notebook
Feature: File upload now supports upload-to-notebook. When the "upload to notebook" checkbox is selected, the file is uploaded to the github gist instead of to the local filesystem. As a result, it can be seen by anyone, regardless of permissions. This can be used to install custom stylesheets (as per feature description below)
Feature: Notebook interests (the set of notebooks you find interesting enough to keep close) is now denoted by starring and unstarring notebooks. We now explicitly keep the user-notebook-starring relation so we can do recsys things with it in the future.
Feature: In view mode (view.html), appending &quiet=1 will hide the navbar and greeting message. This makes it easier for view.html URLs to be effectively used as iframes in different websites.
Feature: In view mode (view.html), rcloud inserts any stylesheets present in the notebook into the main document. Currently, the only way to add stylesheets to a notebook is to directly edit the github gist. This will change in the near future.
Feature: added a github.user.whitelist option to rcloud.conf to allow only a subset of Github users to login to any given rcloud deployment. If no whitelist is given, all users are allowed in
Notebooks can be stored to "stashes" via rcloud.stash.notebook() and then deployed in a read-only RCloud instance by using gist.deployment.stash directive in rcloud.conf instead of a GitHub back-end. Such service instances only support view and notebook.R access. Stashes are stored in RCS and helper functions rcloud.extract.stash() and rcloud.restore.stash() can be used to transfer stashes from a regular RCloud instance to a service depolyment instance.

Bugfixes

Bugfix: rcloud.call.notebook would break on arguments with empty names (e.g. ?foo query string when using notebook.R)

September 19th 2013

v0.8 release created

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NEWS.md

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RCloud 2.3

Features

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RCloud 2.2.3

RCloud 2.2.2

RCloud 2.2.1

RCloud 2.2

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RCloud 2.1.3

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RCloud 2.1.2

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RCloud 2.1

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RCloud 2.0.4

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RCloud 2.0.3

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RCloud 2.0.1

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RCloud 2.0

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RCloud 1.9.1

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RCloud 1.9

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RCloud 1.8.1

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RCloud 1.8

Feature

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RCloud 1.7.1

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RCloud 1.7

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RCloud 1.6.1

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RCloud 1.6

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RCloud 1.5.3

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RCloud 1.5.2

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RCloud 1.5.1

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RCloud 1.5

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