use sexplib0 instead of sexplib for mirage-crypto 0.10.4+ compatibility (the dependency stated sexplib0 since some time, but sexplib was inherited via mirage-crypto-pk)
v0.3.9 (2021-08-04)
use Cstruct.length instead of deprecated Cstruct.len (requires cstruct 6.0.0)
v0.3.8 (2020-03-15)
fix crypt function (0.3.7 used the counter wrong, the 0 should be the other half)
v0.3.7 (2020-03-11)
use mirage-crypto instead of nocrypto
0.3.6 (2019-02-16)
move build system to dune
0.3.5 (2018-08-25)
remove usage of ppx
0.3.4 (2017-11-23)
prefix modules with "Otr_"
drop OCaml < 4.03.0 support
0.3.3 (2016-07-17)
improve interop (instance tags) #10
don't pack anymore
switch to topkg
0.3.2 (2016-05-09)
use result, 4.03 compatibility
0.3.1 (2016-03-21)
get rid of camlp4, use ppx instead
0.3.0 (2015-12-20)
add update_config function to update a session with given parameters
use Astring instead of Stringext for String functionality
0.2.0 (2015-07-02)
config contains policies and versions, but no longer the DSA key
DSA key needs to be provided separately in new_session
own_fingerprint takes a DSA key, not a config
0.1.1 (2015-04-25)
expose full config structure
handle simultaneous open (both parties send a DH_COMMIT) gracefully