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opam OCaml Package Manager


opam is a source-based package manager for OCaml. It supports multiple simultaneous compiler installations, flexible package constraints, and a Git-friendly development workflow. Managing your OCaml installation can be as simple as:

opam list -a # List the available packages
opam install lwt # Install LWT
opam update # Update the package list
...
opam upgrade # Upgrade the installed packages to their latest version


Download and install opam » How to use opam »

News

opam 2.5.0 release

opam releases: 2.5.0~rc1 & opam-publish 2.7.1

opam 2.5.0 beta1 release

opam 2.5.0 alpha1 release

opam 2.4.1 release

opam 2.4.0 release

opam 2.4.0 rc1 release

opam 2.4.0 beta1 release

opam 2.4.0 alpha2 release

opam 2.4.0 alpha1 release

Contribute

Report bugs and ask for features in the opam tool
Report packaging issues or request new packages

Address general queries on the tool and packages
Discuss the tool internals
Check the state of the packages

Documentation

Installing opam

Creating Packages

The opam Manual


4639 packages

New packages
shakuhachi 0.1.0
rpclib-lwt 10.0.0
rpclib-js 10.0.0
rpclib-html 10.0.0
rpclib-async 10.0.0
rpclib 10.0.0
ppx_deriving_rpc 10.0.0
cryptokit 1.21.1
polymarket 0.2.0
menhir-lsp 0.1.2
all packages
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