update readme for 1.7.2/2.0.2

Author: daanx

readme.md

@@ -12,8 +12,8 @@ is a general purpose allocator with excellent [performance](#performance) charac
 Initially developed by Daan Leijen for the run-time systems of the
 [Koka](https://koka-lang.github.io) and [Lean](https://github.com/leanprover/lean) languages.
 
-Latest release tag: `v2.0.1` (beta, 2021-04-06).  
-Latest stable  tag: `v1.7.1` (2021-04-06).
+Latest release tag: `v2.0.2` (beta, 2021-06-17).  
+Latest stable  tag: `v1.7.2` (2021-06-17).
 
 mimalloc is a drop-in replacement for `malloc` and can be used in other programs
 without code changes, for example, on dynamically linked ELF-based systems (Linux, BSD, etc.) you can use it as:
@@ -73,7 +73,10 @@ Enjoy!
 
 ### Releases
 
-* 2021-04-06, `v1.7.1`, `v2.0.1` (beta): fix bug in arena allocation for huge pages, improved aslr on large allocations, improved M1 support (still experimental).
+* 2021-06-17, `v1.7.2`, `v2.0.2` (beta): support M1, better installation layout on Linux, fix
+  thread_id on Android, prefer 2-6TiB area for aligned allocation to work better on pre-window 8, various small fixes.
+
+* 2021-04-06, `v1.7.1`, `v2.0.1` (beta): fix bug in arena allocation for huge pages, improved aslr on large allocations, initial M1 support (still experimental).
 
 * 2021-01-31, `v2.0.0`: beta release 2.0: new algorithm for managing internal mimalloc pages that tends to use reduce memory usage
   and fragmentation compared to mimalloc v1 (especially for large workloads). Should otherwise have similar performance