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2014-10-21 Userspace RCU 0.8.5
* Fix: preserve example files' timestamps when copying
* rculfhash: remove duplicated code
* rculfhash: handle pthread_create failures
* rculfhash: fall back to single-threaded resize on calloc failure
* x86: drop extra semi-colon in caa_cpu_relax
* Fix: Use after free in rcu_barrier()
* Fix: rcu_barrier(): uninitialized futex field
* call_rcu threads should clear their PAUSED flag when they unpause
* Fix: bring back dummy rcu_bp_exit symbol

2014-03-08 Userspace RCU 0.8.4
* Fix: move wait loop increment before first conditional block

2014-03-01 Userspace RCU 0.8.3
* Fix: high cpu usage in synchronize_rcu with long RCU read-side C.S.

2014-02-28 Userspace RCU 0.8.2
* Fix: out of tree build: doc/examples
* Fix: out of tree build tests/common
* tests/unit: use lib rather than source
* automake: Rename INCLUDES to AM_CPPFLAGS (new name)
* tests regressions: use lib rather than recompile from source
* tests: use common lib rather than recompile compat sources
* urcu tests: use lib rather than compile from source
* urcu mb tests: use lib rather than recompile from source
* urcu signal tests: use library rather than recompile source
* tests: move yield debug to common test library
* tests urcu bp: use lib rather than recompile source
* test_urcu_defer: link on urcu lib rather than recompile source
* tests/benchmark: use urcu qsbr lib rather than recompile from source
* Pass the CC variable to the example Makefiles
* Fix: urcu-bp interaction with threads vs constructors/destructors
* Fix undefined NULL pointer arithmetic
* Blacklist ARM gcc 4.8.0, 4.8.1, 4.8.2
* rculfhash: document max_nr_buckets = 0

2013-11-12 Userspace RCU 0.8.1
* tls-compat: fix comment typo
* Keep ABI compatible with already compiled LGPL applications
* Fix: tls-compat multi-lib conflict
* Use cross compiler for doc examples
* gcc warning fixes: -Wsign-compare and -Wextra
* Fix: urcu-qsbr: reversed logic on RCU_DEBUG
* Fix: urcu-bp segfault in glibc pthread_kill()
* Fix urcu-bp: don't move registry
* Fix: compat futex duplicated lock and completion
* Fix: i386 compat code duplicated mutex instances
* Fix: urcu-bp: Bulletproof RCU arena resize bug
* Fix: test_mutex.c uninitialized mutex

2013-09-06 Userspace RCU 0.8.0
* Fix: hash table growth (for small tables) should be limited
* Fix: doc/examples cross-build
* Add missing tests/common/Makefile.am
* README: document make check/regtest/bench
* tests: split in check, regtest and bench targets
* Cleanup: doc/examples makefile
* Fix: doc/examples VPATH build
* doc/examples: Move the LIBS after the OBJECTS in the Makefile
* Document build work-around on MacOS X
* Fix tests: use of uninitialized variables
* test_urcu_hash*: initialize TLS seeds
* doc/examples: cds_lfht_for_each_entry_duplicate
* doc/examples: cds_lfht_lookup
* doc/examples: cds_lfht_destroy
* doc/examples: cds_lfht_add_replace
* doc/examples: cds_lfht_add_unique
* doc/examples: cds_lfht_add/cds_lfht_del
* doc/examples: add rculfqueue example
* doc/examples: add synchronize_rcu()
* doc/examples: add bp flavor
* doc/examples: add dist toplevel makefile
* doc/examples: add membarrier flavor
* doc/examples: document call_rcu()
* doc/examples: update qsbr example
* urcu signal: remove assertion on exit
* doc/examples: signal flavor
* doc/examples: add mb flavor
* doc/examples: update qsbr
* doc/examples: introduce urcu-flavors examples directory
* doc/examples: enhance rcu-flavor-qsbr example
* doc/examples: rename qsbr-minimal to rcu-flavor-qsbr
* doc/examples: automake stop on error
* doc/examples: hlist
* hlist/rcuhlist update
* doc/examples: fix typo in list example
* rcuhlist: make pointer stores atomic
* hlist, rcuhlist: cleanup coding style
* doc/examples: lfstack
* doc/examples: update cds_wfs_pop_all_blocking
* doc/examples: cds_wfs_pop_all_blocking
* doc/examples: cds_wfs_pop
* doc/examples: add missing Makefile
* doc/examples: cds_wfs_push
* doc/wfcqueue: cds_wfcq_splice
* doc/examples: add cds_wfcq_dequeue
* doc/examples: wfcq needs to link against urcu-common
* doc/examples: update queue comment
* doc/examples: fix make clean
* gitignore: add qsbr-minimal
* doc/examples: cds_wfcq_enqueue
* doc/examples: Move LIBS to each makefile
* doc/examples: cds_list_for_each_rcu
* doc/examples: cds_list_for_each_entry_rcu
* doc/examples: cds_list_replace_rcu
* doc/examples: cds_list_add_tail_rcu
* doc/examples: cds_list_del_rcu
* doc/examples: cds_list_add_rcu
* rculist: ensure atomic updates of next pointers
* rculist: implement cds_list_add_tail_rcu
* rculist.h and list.h style cleanup
* example makefile: add missing cd ..
* Update gitignore
* Fix: examples Makefile on FreeBSD
* hash table test: don't redefine CACHE_LINE_SIZE
* tests: use thread-id.h wrapper
* Implement thread-id.h wrapper
* tests: add missing unsigned long casts to pthread_self()
* Fix: don't build examples in static builds
* Add QSBR minimal example
* compiler.h: implement CAA_ARRAY_SIZE()
* document rcu barrier
* rcu barrier: handle OOM die urcu_die
* Implement rcu_barrier()
* rculfhash: document destroy context limitations
* Update README
* Update README testing info about FreeBSD
* test: fix api.h missing if brackets
* tests: fix incorrect counter
* Fix: membarrier fallback symbol conflict
* Fix: Use a filled signal mask to disable all signals
* urcu-bp: introduce struct urcu_gp
* Fix: struct urcu_gp broke multiflavor
* Cleanup test usage printout
* wfstack tests: use pop "last" state info
* wfstack: return whether pop is popping the last element
* wfcqueue tests: use dequeue empty state
* wfcqueue: return whether dequeue is dequeuing last element
* urcu: avoid false sharing for rcu_gp_ctr
* urcu: make the code of urcu-qsbr as normal urcu
* rculfhash: detect if resize/destroy are called within RCU read-side C.S.
* Documentation: rculfhash: cds_lfht_resize not within read-side C.S.
* fix: rculfhash don't change qsbr online state
* Add rcu_read_ongoing() API to each urcu flavor
* Add "sparc" host cpu to configure.ac
* futex: include syscall.h instead of sys/syscall.h
* Add tab to output in order to allow easy nesting of tables.
* Remove urcu-api-list.sh from dist tarball
* Add urcu-api-list.sh script
* list: implement cds_list_for_each_safe()
* Fix: tests/api.h use cpuset.h
* Fix hurd-i386: move cpuset tests outside of sched_setaffinity conditional
* Fix tests: finer-grained use of CPU_SET, CPU_ZERO and cpu_set_t
* Test for CPU_SET
* Fix build on architectures with HAVE_SCHED_GETCPU but without HAVE_SYSCONF
* README: document that Clang 3.0 (based on LLVM 3.0) is supported
* clang: silence "unused expression result" warning
* rculfhash: add assertions on node alignment
* Spelling cleanups within comments and documentation
* Fix configure checks for Tile
* uatomic: style fix
* doc/cds-api.txt: expand documentation
* README: document each API file
* README: reorganize
* Add compilation support for the TileGX architecture
* wfstack: add nonblocking to _LGPL_SOURCE API
* Discourage use of pthread_atfork() for call_rcu handlers
* Fix call_rcu fork handling
* test: fork handling
* rculfhash: add cds_lfht_replace to the write operations in the comments
* urcu: fix comments for cds_list_for_each_prev()
* documentation: fix rcu-api.txt duplicates
* test wfcq: remove unneeded urcu.h include
* test wfs: remove unneeded urcu.h include
* urcu: declare test_urcu_multiflavor functions
* urcu: remove the wrong comma
* wfstack: implement nonblocking pop and next
* wfcqueue: document first/next return values
* wfstack: update comments about cds_wfs_empty/first being wait-free
* wfstack API: rename cds_wfs_first_blocking to cds_wfs_first
* wfstack test: test if number of push to empty vs pop_all match
* wfstack: document first/next return values
* test wfstack: enforce external mutex if needed by default
* test wfcqueue: enforce external mutex if needed by default
* urcu-mb/signal/membarrier: batch concurrent synchronize_rcu()
* urcu-wait: move queue management code into urcu-wait.h
* urcu-wait: move wait code into separate file
* urcu-qsbr: batch concurrent synchronize_rcu()
* tests: use standard malloc/free for synchronize_rcu()
* urcu-bp: move quiescent threads to separate list
* urcu-mb/signal/membarrier: move quiescent threads to separate list
* urcu-qsbr: move offline threads to separate list
* urcu-bp: improve 2-phase wait scheme
* urcu-mb/signal/membarrier: improve 2-phase wait scheme
* urcu-qsbr: improve 2-phase wait scheme
* wfcqueue: implement mutex-free splice
* wfcqueue: document empty criterion
* urcu-call-rcu: use wait-free splice return value
* test wfcqueue: add tests for queue state return value
* wfcqueue: enqueue and splice return queue state
* Fix: wfcqueue nonblocking dequeue
* wfcqueue: Fix lock and unlock functions
* runtests: Make path of time binary configurable
* urcu-qsbr: skip Q.S. reporting if already reported
* Fix TLS detection: test with linker, add --disable-compiler-tls
* Cleanup: cast pthread_self() return value to unsigned long
* Fallback mechanism not working on platform where TLS is unsupported
* Revert "Fix: cross-build: configure.ac should use --target, not --host"
* Fix: cross-build: configure.ac should use --target, not --host
* test_urcu_wfcq: add splice and nosync tests
* test_urcu_wfs: cleanup
* test_urcu_lfs: cleanup
* Fix static linking: add missing static for _defer_rcu
* tests: report error value for make check
* Add multiflavor test program
* Fix static linking: fix symbol name namespaces
* Fix static linking: add missing static to thr_defer
* Fix static linking: add missing static
* deprecation: fix build with gcc < 4.5
* wfstack.c: update copyright notice
* Update wfstack copyright notice
* Comment fix: update associated LGPL header name
* Update cds-api.txt following API deprecations
* Deprecate wfqueue
* Deprecate rculfstack
* wfcqueue: introduce nonblocking API
* lfstack: test pop_all and pop
* lfstack: implement empty, pop_all and iterators, document API
* lfstack: implement test
* lfstack: implement lock-free stack
* wfstack: implement pop_all and iteration tests
* wfstack: implement cds_wfs_pop_all and iterators, document API
* rculfhash test: fix trivial memleak and return node leak and errors
* rculfhash: add missing extern
* Cleanup: fix cppcheck errors
* wfcqueue: remove ancient comment
* test_urcu_lfq: remove rcu_defer_register_thread() from test_urcu_lfq
* test_urcu_lfq: test for the proper pointer
* test_urcu_lfs: remove rcu_defer_register_thread() from test_urcu_lfs
* test_urcu_lfs: test for the proper pointer
* wfcqueue: clarify locking usage
* Document APIs in README
* Test cleanup: replace "l" parameter by "loops"
* Add wfcqueue header to cds.h
* Fix: urcu-bp, urcu, urcu-qsbr should include wfcqueue
* Fix: call_rcu list corruption on teardown (documentation)
* call_rcu: remove head field alignement, explain wfcqueue motivation
* wfcqueue: update credits in patch documentation
* wfcqueue documentation: hint at for_each iterators
* Fix urcu-call-rcu-impl.h: false-sharing
* call_rcu: use wfcqueue, eliminate false-sharing
* wfcqueue test
* wfcqueue: implement concurrency-efficient queue
* Ensure that read-side functions meet 10-line LGPL criterion
* tls-compat.h: document sigaltstack(2) limitation
* urcu: add notice to URCU_TLS() for it is not strictly async-signal-safe
* Document sigaltstack(2) limitation
* Documentation: update LICENSE file

2012-08-27 Userspace RCU 0.7.4
* rculfhash API documentation: document destroy RCU read-lock constraint
* Fix: rculfhash should be offline while waiting for resize to complete
* Add missing entry to gitignore
* urcu: move busy-wait code and name it ___cds_wfq_node_sync_next()
* urcu: fix compat_futex_noasync()
* urcu: add hint to DEFINE_URCU_TLS() for compound types
* Add MIPS support
* Compatibility: remove bash-ismsm from test scripts
* Fix inappropriate lib behavior: don't call exit()
* Fix: re-enable compatibility with autoconf < 2.64
* Fix c99 compatibility: use __asm__ and __volatile__ in public headers
* Fix c99 compatibility: use __typeof__ instead of typeof in public headers
* warning fix: tests urcutorture for NetBSD 5

2012-06-01 Userspace RCU 0.7.3
* Fix tests: make dist lib dependency
* Update README for OS supported, tests dependency
* Add CodingStyle to tarball
* Add coding style document
* Test fix: test_perthreadlock uninitialized mutex
* tests: support FreeBSD short "time" args
* freebsd 8.2 fix: define MAP_ANONYMOUS for compatibility

2012-05-24 Userspace RCU 0.7.2
* Fix library compatibility

2012-05-24 Userspace RCU 0.7.1
* fix: uatomic_set return value compile fix for non-x86 arch.

2012-05-21 Userspace RCU 0.7.0
* Cleanup: header comments coding style
* Document uatomic operations
* Update return value of "set" operations
* Fix mremap wrapper for NetBSD 5
* Use urcu/tls-compat.h
* Implement urcu/tls-compat.h
* Add TLS detection m4 macro
* document concurrent data structures
* documentation: refer to rcu-api.txt
* Move API.txt to doc/rcu-api.txt, install in system doc/
* rculfhash: document implied memory barriers
* rculfhash: Ensure future-proof memory barrier semantic consistency
* API cleanup: use "uatomic_*" in cmm_smp_mb__ API
* uatomic: add memory barrier API for and/or/add/sub/inc/sub
* rculfhash: add runhash.sh test script
* rculfhash tests: add missing check
* rculfhash: fix: race between replace and del operations
* rculfhash: replace unneeded rcu_dereference by CMM_LOAD_SHARED
* rculfhash: use do {} while (0) for dbg_printf()
* rculfhash: cleanup typo
* rculfhash: update API comments
* rculfhash: update comments in implementation
* rculfhash tests: add long hash chains tests
* rculfhash tests: add uniqueness test
* rculfhash test: print test name
* rculfhash: stress requirement in documentation
* rculfhash: fix typo
* rculfhash tests: use array of callbacks to modularize
* rculfhash tests: modularize tests
* rculfhash: document ordering guarantees
* rculfhash: document linearizability guarantees
* rculfhash: update removal comment
* Add missing files to .gitignore
* Fix out-of-tree build
* rculfhash: check malloc NULL pointer
* Fix uatomic sign cast
* Remove unused jhash.h file
* Fix: use known license text, fix incorrect FSF address
* Fix: add missing sched.h include in rculfhash.c
* Allow tests to run on architectures without per-cpu call_rcu support
* Hash table test: FreeBSD compatibility fix
* tests: define _GNU_SOURCE instead of __USE_GNU
* RCU lock-free hash table: implement cds_lfht_is_node_deleted()
* Define _GNU_SOURCE to access CPU_ZERO() macro in uClibc
* Install ChangeLog and README into system's doc
* Fix AC_LANG_SOURCE usage: only takes one parameter
* Fix autoconf futex check
* configure.ac: Use AC_LANG_SOURCE for if else macros
* Refresh autoconf files
* Update gitignore
* rculfhash: add comment about hash seed randomness within test program
* readme: state correct GCC dependency for ARM
* rculfhash: remove an invocation of bit_reverse_ulong() when adding
* rculfhash: remove unneeded conversion
* rculfhash: remove unneeded clear_flag()
* cds_lfht_replace: add checks for old/new node hash/value match
* rculfhash: use node instead of iter argument for deletion
* rculfhash: number of logically removed nodes should not appear in API
* Document that flags could be represented on 2 bits
* Add missing REMOVAL_OWNER_FLAG comment to cds_lfht_node comment
* _cds_lfht_del is not used for buckets anymore, remove parameter
* rculfhash: Relax atomicity guarantees required by removal operation
* remove unneeded "return;"
* simplify the deletion for bucket node
* Remove unneeded code
* Add cds_lfht_ prefix to fls_ulong, get_count_order_ulong, get_count_order_u32
* Merge RCU Lock-Free Resizable Hash Table

2011-12-12 Userspace RCU 0.6.7
* Add compat file for test urcu wfs
* Add missing compat file for wfq test
* hlist.h: Add missing stddef.h include for NULL
* call_rcu: Add missing call_rcu_before_fork and
  call_rcu_after_fork_parent declarations
* Describe autotools/libtool/automake version dependency
* Remove m4_ifdef for AC_PROG_LIBTOOL (deprecated)
* Support older autotools
* Apply autoupdate to configure.ac
* Fix build for amd64 environment (for FreeBSD 8.2)
* Add missing rcu_dereference_sym_bp
* Install test scripts in the dist tarball

2011-11-03 Userspace RCU 0.6.6
* qsbr vs call_rcu : remove exit assertion
* Rename likely/unlikely to caa_likely/caa_unlikely
* Reinsert missing test_urcu_*.c files (missing in rename)
* rename test_qsbr to test_urcu_qsbr
* urcu-pointer: fix rcu_set_pointer unset return value
* Enhance API.txt documentation, add to Makefile as EXTRA_DIST

2011-09-29 Userspace RCU 0.6.5
* call_rcu: Document call_rcu requirements
* call_rcu: fix error handling of malloc error
* urcu call_rcu: Use RCU read-side protection for per-cpu call_rcu data
* urcu,call_rcu: Cleanup call_rcu_data pointers before use in child
* urcu,call_rcu: avoid create call_rcu_data for child when unneed
* urcu,defer_rcu: Make defer_rcu encoding more compact for marker
* urcu_defer: Use cancellation flag instead of pthread_cancel()
* urcu,call_rcu: protects call_rcu_data_list when remove node
* Create default call rcu data upon per-cpu call-rcu teardown
* powerpc: use __NO_LWSYNC__ check to use appropriate lwsync/sync opcode
* cmm: provide lightweight smp_rmb/smp_wmb on PPC
* atomic: provide seq_cst semantics on powerpc
* avoid leaking crdp for failed path
* Return -EEXIST when the old cpu call_rcu_data has not been removed
* protect writing to per_cpu_call_rcu_data[*]
* wake up default call_rcu thread after we move the leftover callbacks
* avoid memory leak in call_rcu_data_free()
* urcu call_rcu: fix use after free()
* use get_cpu_call_rcu_data() for get_call_rcu_data()
* init maxcpus before use
* call_rcu implementation: add missing static
* Document QSBR interaction with mutexes
* urcu-pointer: implement URCU_FORCE_CAST for C++ compatibility of urcu-pointer.h
* urcu-qsbr: use rcu_thread_offline/rcu_thread_online instead of inlining them
* Pair all_cpu call_rcu create with free
* QSBR: add missing wakeups in synchronize_rcu code
* cmm: do not generate code for smp_rmb/smp_wmb on x86_64
* cmm: let per-arch files provide cmm_smp_* barriers
* Optimize caa_get_cycles() for PowerPC64
* lfq/lfs tests: use call_rcu
* list: Add cds_list_first_entry
* rculfstack/queue: define _LGPL_SOURCE around static header include
* Add __rcu annotation (unimplemented)
* Fix incorrect fsf address in header files
* wfstack: push returns prior stack emptiness state
* Make lf stack push return if the stack was empty
* Document caa_container_of
* urcu-bp: do not call munmap for NULL registry at exit
* urcu libraries can directly use the _LGPL_SOURCE wfqueue
* rculfstack: document "push"
* Add runall.sh to tarball
* Fix build order of liburcu-cds-common
* Fix missing check for SYS_membarrier in map header
* urcu-qsbr: avoid useless futex wakeups and burning CPU for long grace periods
* api: reimplement BUILD_BUG_ON in compiler.h
* test api cleanup: remove unused primitives
* put thread offline while waiting for the init flag
* urcu: move private definitions to .c file
* urcu-bp: move private definitions to .c file
* urcu-qsbr: move private definitions to .c file
* rcutorture: fix rcutorture-qsbr
* wfqueue: fix type-incorrect assignment
* Fix tests Makefile EXTRA_DIST to use api.h
* Fix choice of default flavour in urcu/map/urcu.h
* api: remove list/hlist
* api: remove arch-specific files
* api: make api_gcc.h a superset of the other headers
* tests api: remove atomics
* put thread offline while waiting for the init flag
* urcu: move private definitions to .c file
* urcu-bp: move private definitions to .c file
* urcu-qsbr: move private definitions to .c file
* rcutorture: fix rcutorture-qsbr
* wfqueue: fix type-incorrect assignment
* Use caa_ prefix for min() and max()

2011-07-21 Userspace RCU 0.6.4
* uatomic: Fix ARM build errors in uatomic.
* urcu tests: hold mutex across use of custom allocator.
* Portability fixes to support FreeBSD 8.2.

2011-06-27 Userspace RCU 0.6.3
* uatomic: Fix i386 compatibility build errors in uatomic.

2011-06-13 Userspace RCU 0.6.2
* Fix build on powerpc.

2011-06-13 Userspace RCU 0.6.1
* Add missing headers into release tarball:
    urcu-call-rcu-impl.h and urcu-defer-impl.h

2011-06-10 Userspace RCU 0.6.0
* Added call_rcu() support, graciously contributed by Paul E. McKenney.
* Added urcu/cds.h and merged all "Concurrent Data Containers" (CDS)
  into a single .so: liburcu-cds.so to have a single header/shared
  object holding all concurrency-aware data containers. It provides
  support for RCU lists, queues and stacks at the moment.
* liburcu 0.6.0 now allows linking a single application with multiple
  flavors of RCU. This required a library API change which is
  incompatible with older 0.5.x liburcu. The .so version number
  is therefore bumped from 0 to 1 (e.g. liburcu.so.1).
* Added "atfork" handling API, documented in README. Only useful for
  processes using fork() without following exec().
* Renaming the following files, keeping the old files (producing a
  compiler warning):
    urcu/uatomic_arch.h -> urcu/uatomic.h
    urcu/urcu-futex.h -> urcu/futex.h
    urcu/urcu_ref.h -> urcu/ref.h

2011-03-04 Userspace RCU 0.5.4
*  urcu-bp: Update fork() handling


    extern void rcu_bp_before_fork(void);
    extern void rcu_bp_after_fork_parent(void);
    extern void rcu_bp_after_fork_child(void);

    to handle fork gracefully. These disable signals and hold
    the registry mutex across forks. (this flavor of the liburcu
    library ("bp" for "bulletproof") is mainly used by UST, the
    user-space tracer).

2011-03-03 Userspace RCU 0.5.3
* Add support for older ARM single-CPU architecturess (pre-ARMv7)
  (thanks to Jason Wessel from WindRiver).
* Fix ARMv7 cmm_rmb/cmm_wmb primitives (use a dmb barrier).
* Remove leftover list_t type from urcu/list.h (namespace cleanup).
* urcu_defer: handle malloc error value.
* Update README file to describe urcu interaction with fork() when not
* followed
  by an exec() system call.

2010-11-18 Userspace RCU 0.5.2
* Fix renaming error introduced in 0.5.0.

2010-11-18 Userspace RCU 0.5.1
* Fix renaming error introduced in 0.5.0. (incomplete fix)

2010-11-18 Userspace RCU 0.5.0
* Version 0.5.0 changes the API presented by memory model,
  architecture abstraction and data structure primitives in
  headers. The prefixes are, respectively:
    - cmm_ : Concurrent Memory Model
    - caa_ : Concurrent Architecture Abstraction
    - cds_ : Concurrent Data Structures

2010-03-04 Userspace RCU 0.4.2
* Add generic uatomic ops support.
* Bugfix in urcu-bp. (rare garbage collection bug occurring in
  multithreaded environment). Only affects urcu-bp users (UST).

2010-02-12 Userspace RCU 0.4.1
* s390: compilation fix.

2010-01-30 Userspace RCU 0.4.0
* API changes: standardize on rcu_ prefix.
* API change: urcu_init -> rcu_init.
* urcu/config.h options renamed to CONFIG_RCU_HAVE_FENCE,
  ((moving from URCU -> RCU).
* library names changes: liburcu becomes the "default" version, using
  sys_membarrier() when available, and using liburcu-mb as a
* The signal-based liburcu is renamed from liburcu to
  liburcu-signal. People previously using the signal-based
  "liburcu" will automatically be moved to the "default" liburcu

2009-11-16 Userspace RCU 0.3.1
* Add support for sparcv9 32-bit build.
* Update build system to use --host instead of --target.

2009-11-03 Userspace RCU 0.3.0
* API change for the "deferred work" interface.

2009-10-14 Userspace RCU 0.2.3
* Move to autotools.
* Automated architecture detection, with i386 fallback.
* Detect if NR_futex is on the system, fallback on portable
* Add configure mode for UP-only systems.

2009-10-02 Userspace RCU 0.2.2
* Phases out rcu_publish_content() api.
* Adds type checking to urcu-pointer.h pointer exchange primitives.

2009-10-02 Userspace RCU 0.2.1
* small header dependency fix for rculist.h.
* new "liburcu-bp.so" : "Bulletproof RCU", made especially for
  the UST userspace tracer. It's a library that sacrifices a bit
  of read-side performance for automatically monitoring thread
  creation/removal. See README for details.

2009-10-01 Userspace RCU 0.2
* Clarify usage of rcu_cmpxchg_pointer, rcu_xchg_pointer,

2009-09-29 Userspace RCU 0.1
* Initial release.