0.5.4

• Enable safe-string compatibility (#32).
• Add -std=c99 to CFLAGS (#29).

0.5.3

• Remove -ansi flag to be compatible with OCaml 4.04 (thanks Mark Shinwell).
• Use accessor functions for X509_STORE_CTX.
• Change CLIBS order to allow static linking.

0.5.2

• Add OPENSSL_NO_SSL3 preprocessor flag to disable SSLv3 (thanks Jérémie
  Courrèges-Anglas).

0.5.1

• Fix META file for versions of OCaml older than 4.02.0 (thanks Anil
  Madhavapeddy, closes #20).

0.5.0

• Allow to honor server cipher preferences (thanks mfp, closes #18).
• Add functions for reading into/writing from bigarrays, avoiding copy (thanks
  mfp, closes #15).
• Support disabling SSL protocol versions (thanks Edwin Török, closes #13).
• Use Bytes instead of String for read and write, changes the ABI thus the
  version bump (thanks Vincent Bernardoff, closes #16, and mfp, closes #19).
• Make verbosity of client_verify_callback configurable (thanks Nicolas Trangez,
  closes #12).
• Fix build with old versions of SSL (thanks Edwin Török, closes #10).