4.993

Version 4.993 (10 August 2021)

• Added some "address space slack" under FullDebugMode. This reserves a
  block of address space on startup (currently 5MB) that is released just
  before the first time an EOutOfMemory exception is raised, allowing some
  GetMem calls following the initial EOutOfMemory to succeed. This allows
  the application to perform any error logging and other shutdown operations
  successfully that would have failed it the address space was actually
  completely exhausted. (Under FullDebugMode address space is never released
  back to the operating system so once the address space has been exhausted
  there is very little room to manoeuvre.)
• Added the RestrictDebugDLLLoadPath option to only load the debug DLL from
  the host module directory.
• Performance and other enhancements to the call stack generation. (Thanks to
  Andreas Hausladen.)
• Added FastMM artwork. (Thanks to Jim McKeeth.)
• Added the FastMM_GetInstallationState function: Allows determination of
  whether FastMM is installed or not, and if not whether the default memory
  manager is in use or a different third party memory manager.

4.992

Version 4.992 (21 October 2016)

• OS X full debug mode added by Sebastian Zierer
• Included the average block size in the memory state log file. (Thanks to
  Hallvard Vassbotn)
• Support added for Free Pascal's OS X and Linux targets, both i386 and
  x86-64. (Thanks to Zoë Peterson - some fixes by Arnaud Bouchez)
• Added the LogLockContention option which may be used to track down areas
  in the application that lead to frequent lock contentions in the memory
  manager. (Primoz Gabrijelcic)
• Support for release stacks added by Primoz Gabrijelcic. Define
  "UseReleaseStack" to use this new feature: If a block cannot be released
  immediately during a FreeMem call the block will added to a list of blocks
  that will be freed later, either in the background cleanup thread or during
  the next call to FreeMem.