diff --git a/README.md b/README.md
index 64afada..adff863 100644
--- a/README.md
+++ b/README.md
@@ -32,10 +32,12 @@ The client is known to work with [OpenVPN®][openvpn] 2.3+ servers.
     - Disabled
     - Compress (2.4)
     - LZO (deprecated in 2.4)
+- [x] Compression algorithms
+    - LZO (`--comp-lzo` only)
 - [x] Key renegotiation
 - [x] Replay protection (hardcoded window)
 
-The library therefore supports compression framing, just not compression. Remember to disable server-side compression and match framing, otherwise the client will shut down with an error. E.g. if server has `comp-lzo no`, client must use `compressionFraming = .compLZO`.
+The library therefore supports compression framing, just not newer compression. Remember to match server-side compression and framing, otherwise the client will shut down with an error. E.g. if server has `comp-lzo no`, client must use `compressionFraming = .compLZO`.
 
 ### Support for .ovpn configuration
 
@@ -45,7 +47,6 @@ Unsupported:
 
 - UDP fragmentation, i.e. `--fragment`
 - Compression
-    - `--comp-lzo` other than `no`
     - `--compress` other than empty
 - Proxy
 - External file references (inline `<block>` only)
@@ -163,6 +164,10 @@ As seen in [libsignal-protocol-c][license-signal]:
 
 > Additional Permissions For Submission to Apple App Store: Provided that you are otherwise in compliance with the GPLv3 for each covered work you convey (including without limitation making the Corresponding Source available in compliance with Section 6 of the GPLv3), the Author also grants you the additional permission to convey through the Apple App Store non-source executable versions of the Program as incorporated into each applicable covered work as Executable Versions only under the Mozilla Public License version 2.0 (https://www.mozilla.org/en-US/MPL/2.0/).
 
+### Part III
+
+Part I and II do not apply to the LZO library, which remains licensed under the terms of the GPLv2+.
+
 ### Contributing
 
 By contributing to this project you are agreeing to the terms stated in the [Contributor License Agreement (CLA)][contrib-cla].
@@ -173,6 +178,7 @@ For more details please see [CONTRIBUTING][contrib-readme].
 
 - [PIATunnel][dep-piatunnel-repo] - Copyright (c) 2018-Present Private Internet Access
 - [SwiftyBeaver][dep-swiftybeaver-repo] - Copyright (c) 2015 Sebastian Kreutzberger
+- [lzo][dep-lzo-website] - Copyright (c) 1996 - 2017 Markus F.X.J. Oberhumer
 
 This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit. ([https://www.openssl.org/][dep-openssl])
 
@@ -206,6 +212,7 @@ Website: [davidederosa.com][about-website]
 
 [dep-piatunnel-repo]: https://github.com/pia-foss/tunnel-apple
 [dep-swiftybeaver-repo]: https://github.com/SwiftyBeaver/SwiftyBeaver
+[dep-lzo-website]: http://www.oberhumer.com/opensource/lzo/
 
 [about-twitter]: https://twitter.com/keeshux
 [about-website]: https://davidederosa.com