* Add API for accessing incremental GC time limit with nanosecond precision
* Add I_HOLD_LOCK assertion to expand_hp_inner and related functions
+* Adjust formatting of numbered lists in README.md to match other .md files
+* Adjust highlighting of API prototypes in gcinterface.md
* Adjust printf calls in gctest check_heap_stats so that each has new-line
* Eliminate 'hash_val value is never used' cppcheck false positive
* Eliminate 'stop variable is always 0' compiler warning in print_callers
* New API function to get size of object debug header
* New macro (GCTEST_PRINT_VERBOSE) to enable verbose logging in test.c only
* Print pid of child processes if verbose logging (gctest)
+* Reformat gc.man (wrap long lines)
+* Remove 'current users' section from overview.md
+* Remove 'distributed ports', 'scalable versions' sections from overview.md
* Remove Linux-specific commands for building cord/de from Makefile.direct
* Remove dash characters comprising prefix of some verbose logs (gctest)
+* Remove documentation specific to particular old BDWGC releases
* Remove goto statement in print_callers (code refactoring)
* Remove redundant options for building 'cord' in gc.mak
* Remove redundant type casts in backgraph HEIGHT_UNKNOWN/IN_PROGRESS
+* Remove unused sparc_sunos4_mach_dep.s file
* Replace "msecs" with "ms" in all comments and messages
* Report time with a nanosecond precision where available
* Update libgc.so version info to differentiate against v8.0.x
+* Update the ASCII diagrams describing the tree structure for pointer lookups
+* Update the documentation to match the current GC implementation
+* Use KB/MB/GB abbreviations uniformly across entire documentation
* Use atomic primitives for Sony PlayStation Portable 2 and PS4
* Use better precision Windows timers
* Workaround '*_stubborn function is never used' cppcheck warnings