Prepare for release v1.6.

VERSION

@@ -1 +1 @@
-1.6~dev
+1.6

docs/internalDocs/ReleaseNotes.md

@@ -2,7 +2,7 @@ Introduction
 ============
 
 This document contains the release notes for the automatic differentiation
-plugin for clang Clad, release 1.5. Clad is built on top of
+plugin for clang Clad, release 1.6. Clad is built on top of
 [Clang](http://clang.llvm.org) and [LLVM](http://llvm.org>) compiler
 infrastructure. Here we describe the status of Clad in some detail, including
 major improvements from the previous release and new feature work.
@@ -11,7 +11,7 @@ Note that if you are reading this file from a git checkout,
 this document applies to the *next* release, not the current one.
 
 
-What's New in Clad 1.5?
+What's New in Clad 1.6?
 ========================
 
 Some of the major new features and improvements to Clad are listed here. Generic
@@ -26,52 +26,53 @@ External Dependencies
 
 Forward Mode & Reverse Mode
 ---------------------------
-* Add support for C-style memory alloc and free
+* Add support for simple lambda functions
 
 
-Reverse Mode
+Forward Mode
 ------------
-* Replace array_ref with pointers in gradient signature
-* Initial support for new and delete operations in reverse mode
+* Support condition declarations and assignments
+* Enable logical operators in for loops
+* Support top level custom derivatives in vector mode
+* Add support for assignments in while-loops
+* Support for initializer_list
+* Support for const_cast
+* Add support for `std::string` variables
 
 
-Error Estimation
-----------------
-* Only track sizes of independent arrays
-* Remove .size() from error estimation
-* Simplify error estimation by removing `_EERepl_` and `_delta_`
+Reverse Mode
+------------
+* Improve consistency in the tape usage
+* Support pointer reference parameters
+* Remove redundant goto/label statements from the generated code
 
 Misc
 ----
-* Teach binder to use the newest available version of clad
-* Simplify pullback calls by replacing `_grad`/`_r` pairs with single `_r`
-  variables
-* Delay the differentiation process until the end of TU -- Clad now can operate
-  just like clang and visit the entire translation unit to construct a precise
-  differentiation plan
-* Remove extra lines generated when using clad::array or array_ref
-* Added timings report if `-ftime-report` flag is enabled
+* Improved CMake infrastructure via `AddClad.cmake`
+* Remove unnecessary clad::array_ref usages
+* Add support for computing only the diagonal hessian entries
+* Basic support for custom constructor pushforward functions
+
 
 Fixed Bugs
 ----------
 
-[248](https://github.com/vgvassilev/clad/issues/248)
-[350](https://github.com/vgvassilev/clad/issues/350)
-[704](https://github.com/vgvassilev/clad/issues/704)
-[715](https://github.com/vgvassilev/clad/issues/715)
-[765](https://github.com/vgvassilev/clad/issues/765)
-[769](https://github.com/vgvassilev/clad/issues/769)
-[790](https://github.com/vgvassilev/clad/issues/790)
-[792](https://github.com/vgvassilev/clad/issues/792)
-[798](https://github.com/vgvassilev/clad/issues/798)
-[805](https://github.com/vgvassilev/clad/issues/805)
-[854](https://github.com/vgvassilev/clad/issues/854)
-[865](https://github.com/vgvassilev/clad/issues/865)
-[867](https://github.com/vgvassilev/clad/issues/867)
-[886](https://github.com/vgvassilev/clad/issues/886)
-[887](https://github.com/vgvassilev/clad/issues/887)
-[890](https://github.com/vgvassilev/clad/issues/890)
-[897](https://github.com/vgvassilev/clad/issues/897)
+[273](https://github.com/vgvassilev/clad/issues/273)
+[352](https://github.com/vgvassilev/clad/issues/352)
+[509](https://github.com/vgvassilev/clad/issues/509)
+[789](https://github.com/vgvassilev/clad/issues/789)
+[874](https://github.com/vgvassilev/clad/issues/874)
+[899](https://github.com/vgvassilev/clad/issues/899)
+[908](https://github.com/vgvassilev/clad/issues/908)
+[911](https://github.com/vgvassilev/clad/issues/911)
+[913](https://github.com/vgvassilev/clad/issues/913)
+[922](https://github.com/vgvassilev/clad/issues/922)
+[927](https://github.com/vgvassilev/clad/issues/927)
+[951](https://github.com/vgvassilev/clad/issues/951)
+[965](https://github.com/vgvassilev/clad/issues/965)
+[972](https://github.com/vgvassilev/clad/issues/972)
+[974](https://github.com/vgvassilev/clad/issues/974)
+[978](https://github.com/vgvassilev/clad/issues/978)
 
 Special Kudos
 =============
@@ -83,17 +84,15 @@ FirstName LastName (#commits)
 
 A B (N)
 
-petro.zarytskyi (30)
-Vaibhav Thakkar (24)
-Vassil Vassilev (21)
-mcbarton (6)
-Mihail Mihov (4)
-dependabot[bot] (2)
-Atell Krasnopolski (2)
-Alexander Penev (2)
-sauravUppoor (1)
-kchristin22 (1)
-Warren Jacinto (1)
-Jonas Hahnfeld (1)
-Deeptendu Santra (1)
-Christina Koutsou (1)
+Vaibhav Thakkar (16)
+petro.zarytskyi (13)
+Vassil Vassilev (13)
+Atell Krasnopolski (11)
+parth-07 (3)
+dependabot[bot] (3)
+Rohan Julka (2)
+Jonas Rembser (2)
+PetroZarytskyi (1)
+Maxxxx (1)
+Max Andriychuk (1)
+Alexander Penev (1)