v1.4.0 2022-02-17 La Forclaz (VS)

• Change the js_of_ocaml strategy for Mtime_clock's JavaScript
  implementation. Primitives of mtime.clock.os are now implemented
  in pure JavaScript and linked by js_of_ocaml. This means that the
  mtime.clock.jsoo library no longer exists, simply link against
  mtime.clock.os instead. Thanks to Hugo Heuzard for suggesting and
  implementing this.

• Add Mtime.{min,max}_stamp.

• Add durations Mtime.Span.{ns,us,ms,s,min,hour,day,year} and
  the Mtime.Span.(*) operator (#28).

• Deprecate Mtime.s_to_* and Mtime.*_to_s floating point constants (#28).

• Require OCaml >= 4.08.

• Allow compiling with MSVC compiler. Thanks to Jonah Beckford for the patch.

v1.3.0 2021-10-20 Zagreb

• Add Windows support. Thanks to Andreas Hauptmann for the patch
  and Corentin Leruth for the integration.

v1.2.0 2019-07-19 Zagreb

• Add support for node.js. Thanks to Fabian (@copy) for the patch.

• Support for js_of_ocaml 3.4.0.

• Add MTIME_OS environment variable for specifying the OS at build time.

v1.1.0 2017-06-24 London

• Add Mtime.Span.{add,zero,one,min_span,max_span}.

v1.0.0 2017-05-09 La Forclaz (VS)

This is a major breaking release with a new API. Thanks to David
Sheets for contributions and discussions. The API was changed to
mirror and follow the conventions and design of Ptime. The Mtime
module now only provides platform independent datatypes for supporting
monotonic clock readings. Platform dependent access to monotonic
clocks is provided by the Mtime_clock modules. The Mtime.t type
was added for monotonic timestamps.

• Rename packages mtime.{jsoo,os} to mtime.{clock.jsoo,clock.os}
  which implement the new Mtime_clock interface. The mtime package
  has the platform independent support.

• Remove Mtime.available, Mtime_clock functions now raise Sys_error
  on unsupported platforms or errors.

• Add a raw interface to Mtime_clock which statisfies MirageOS's monotonic
  clock signature.

• Move Mtime.{elapsed,counter,count} to
  Mtime_clock.{elapsed,counter,count}.

• Add Mtime.t a type to represent system-relative monotonic
  timestamps and related functions. Thanks to David Sheets for the
  patch and his patience.

• Add the Mtime.Span module for functions on monotonic time
  spans. Most of the previous platform independent support is now
  provided by this module. See below.

• Move Mtime.to_ns_uint64 to Mtime.Span.to_uint64_ns.

• Move other Mtime.to_* to Mtime.Span.to_*.

• Move Mtime.pp_span[_s] to Mtime.Span.pp[_float__s].

• Add Mtime.Span.{compare,equal}. Thanks to David Sheets for the patch.

• Add Mtime.Span.of_uint64_ns. Thanks to David Sheets for the patch.

v0.8.4 2017-02-05 La Forclaz (VS)

• Fix package for -custom linking. Thanks to @orbitz for the report.

• Build depend on topkg.

• Relicense from BSD3 to ISC.

v0.8.3 2015-12-22 Cambridge (UK)

• Fix Linux bytecode builds. Thanks to Edwin Török for the report.

• Really make js_of_ocaml an optional dependency.

v0.8.2 2015-05-17 La Forclaz (VS)

• Simpler toploop support (internal change).

• Improve Linux build support by recording link flags against librt in
  the cma and cmxa (this seems to be needed in certain distributions).
  Thanks to David Scott for the report and the fix.

v0.8.1 2015-03-23 La Forclaz (VS)

• Fix broken arithmetic on 32-bit platform with POSIX clocks. Thanks to
  Stephen Dolan for the report and the fix.

v0.8.0 2015-03-19 La Forclaz (VS)

First release.