merge from dev

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: `v2.0.6` (2022-04-14).  
-Latest stable  tag: `v1.7.6` (2022-02-14).
+Latest release tag: `v2.0.7` (2022-11-03).  
+Latest stable  tag: `v1.7.7` (2022-11-03).
 
 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:
@@ -77,6 +77,9 @@ Note: the `v2.x` version has a new algorithm for managing internal mimalloc page
   and fragmentation compared to mimalloc `v1.x` (especially for large workloads). Should otherwise have similar performance
   (see [below](#performance)); please report if you observe any significant performance regression.
 
+* 2022-11-03, `v1.7.7`, `v2.0.7`: Initial support for [Valgrind] for leak testing and heap block overflow detection. Initial
+  support for attaching heaps to a speficic memory area (only in v2). Fix `realloc` behavior for zero size blocks, remove restriction to integral multiple of the alignment in `alloc_align`, improved aligned allocation performance, reduced contention with many threads on few processors (thank you @dposluns!), vs2022 support, support `pkg-config`, .
+
 * 2022-04-14, `v1.7.6`, `v2.0.6`: fix fallback path for aligned OS allocation on Windows, improve Windows aligned allocation
   even when compiling with older SDK's, fix dynamic overriding on macOS Monterey, fix MSVC C++ dynamic overriding, fix
   warnings under Clang 14, improve performance if many OS threads are created and destroyed, fix statistics for large object