2.15.0

CHANGES:

Breaking changes:

• Require OCaml >= 5.2 (@talex5 @avsm #144).

Other new features:

• Update to liburing 2.15 (@avsm #157).

• Add shutdown, socket, renameat and symlinkat ops (@avsm #147).

• Add fallocate and ftruncate ops (@avsm #149).

• Allow setting socket flags on socket creation, and default the
  socket binding to set CLOEXEC by default (@avsm #151).

• Add per-operation RWF flags to read/write submissions (@avsm #154).

• Add bindings for vectored readv/writev on fixed buffers (@avsm #155).

Bug fixes:

• Fix inverted mask check in Statx.Attr.check (@avsm @talex5 #142 #159).

• Fix dio_offset_align statx getter returning the wrong field (@avsm #141).

• Give caml_uring_wait_cqe the same null-cqe check as the timeout
  variant and reuse the OCaml runtime's socket table. (@avsm #148).

• Report errors from io_uring_submit rather than ignoring them (@talex5 #144).

• Add a bounds check to Region.init and simplify the slot calculation
  (@dra27 #128, @avsm #145).

• Fix URING_DEBUG format-string warnings (@avsm #146).

• Hardcode rename flags for compat with older musl versions (@avsm #147).

Build and tests:

• Don't use /tmp in the configure test, to work with sandboxed opam builds
  (@talex5 #158).

• Regenerate primops and make lintcstubs-arity a test dependency
  (@avsm #143, based on @dra27 in #128).