Update the README (#5003)

* Drop 1.14 badges
* Update the 2.0.0 features list
* Change the version to 2.0.0 (under development)

README.md

@@ -1,4 +1,4 @@
-HDF5 version 1.17.0 currently under development
+HDF5 version 2.0.0 currently under development
 
 ![HDF5 Logo](doxygen/img/HDF5.png)
 
@@ -10,8 +10,6 @@ HDF5 version 1.17.0 currently under development
 [![CVE regression](https://img.shields.io/github/actions/workflow/status/HDFGroup/hdf5/cve.yml?branch=develop&label=CVE)](https://github.com/HDFGroup/hdf5/actions/workflows/cve.yml?query=branch%3Adevelop)
 [![HDF5 VOL connectors build status](https://img.shields.io/github/actions/workflow/status/HDFGroup/hdf5/vol.yml?branch=develop&label=HDF5-VOL)](https://github.com/HDFGroup/hdf5/actions/workflows/vol.yml?query=branch%3Adevelop)
 [![HDF5 VFD build status](https://img.shields.io/github/actions/workflow/status/HDFGroup/hdf5/vfd.yml?branch=develop&label=HDF5-VFD)](https://github.com/HDFGroup/hdf5/actions/workflows/vfd.yml?query=branch%3Adevelop)
-[![1.14 cmake build status](https://img.shields.io/github/actions/workflow/status/HDFGroup/hdf5/cmake.yml?branch=hdf5_1_14&label=HDF5%201.14%20CMake%20CI)](https://github.com/HDFGroup/hdf5/actions/workflows/cmake.yml?query=branch%3Ahdf5_1_14)
-[![1.14 autotools build status](https://img.shields.io/github/actions/workflow/status/HDFGroup/hdf5/autotools.yml?branch=hdf5_1_14&label=HDF5%201.14%20Autotools%20CI)](https://github.com/HDFGroup/hdf5/actions/workflows/autotools.yml?query=branch%3Ahdf5_1_14)
 [![BSD](https://img.shields.io/badge/License-BSD-blue.svg)](https://github.com/HDFGroup/hdf5/blob/develop/LICENSE)
 
 [HPC configure/build/test results](https://my.cdash.org/index.php?project=HDF5)
@@ -90,7 +88,7 @@ are tentative.
 
 | Release | New Features |
 | ------- | ------------ |
-| 2.0.0 | Drop Autotools support, complex number support, updated library defaults (cache sizes, etc.), semantic versioning |
+| 2.0.0 | Drop Autotools support, drop the C++ API, drop the HDF5 <--> GIF tools, add complex number support, update library defaults (cache sizes, etc.), use semantic versioning |
 | FUTURE | Multi-threaded HDF5, crashproofing / metadata journaling, Full (VFD) SWMR, encryption, digital signatures, sparse datasets, improved storage for variable-length datatypes, better Unicode support (especially on Windows) |
 
 NOTE: In the March 2025 release we will begin using semantic versioning (https://semver.org/) and the previously announced 1.16.0 version will instead be numbered 2.0.0.