[mcs] Emit unmanaged version info from AssemblyFileVersion. Fixes #20057
Changed API for fetching StackFrames in bulk on multiple threads ThreadMirror.FetchFrames instead of automatically on VirtualMachine.GetThreads
[corlib][ios] Fix 'write' pinvoke declaration to be 64bits safe
[System] Ensure pinvoke into OXS/iOS Security framework are 64bits safe
[mcs] Flow analysis of binary expressions not using logical operators. Fixes #20086
[System] Ensure pinvoke into OXS/iOS CFNetwork framework (for proxy support) are 64bits safe
Tests update
[mcs] Fix betterness logic for default vs params parameters. Fixes #19754
Removed NET_2_1 conditional blocks from FileInfo. Fixes #19862.
Merge pull request #1048 from DavidKarlas/cacheThreadsAndBulkFetch

[Mono.Debugger.Soft] Caching threads and bulk fetching StackFrames
[Mono.Debugger.Soft] minor code cleanup
[amd64] Simplify mono_arch_handle_altstack_exception () by passing a MonoContext on the stack instead of an os specific sigctx structure which required special handling and broke when _XOPEN_SOURCE was defined.
Merge pull request #1067 from esdrubal/bug19862

Removed NET_2_1 conditional blocks from FileInfo. Fixes #19862.
Add System.ServiceModel.Security assembly. Fixes #20108
[verifier] Fix constrained type unwrap for enum types. Fixes #18371
[mcs] Use constrained prefix for enum calls too
Fixes build with newer mcs
[mcs] If the overriding property is sealed, then the overridden accessors cannot be inaccessible
[verifier] Set correctly stack type based on constrained type
Test that ConcurrentQueue does not keep old references. Covers 18421.