diff --git a/README.md b/README.md
index c84fc6d24c5b9690cdd87d1f7aeb494b3d46b52c..ac7e398f38a559f3d537ccaef083f78ea86bedc5 100644
--- a/README.md
+++ b/README.md
@@ -42,6 +42,15 @@ I haven't used it yet.
 
 URL: <https://github.com/yglukhov/nimpy>
 
+### codon
+
+To compile code written in some restricted version of the Python language into
+hopefully something more efficient than a Python script.
+
+I haven't tried it.
+
+URL: <https://docs.exaloop.io/codon>
+
 ### beautifulsoup
 
 To parse XML formats.
@@ -118,7 +127,7 @@ URL: <https://networkx.org/>
 ### polars
 
 Promises efficient data frames to use instead of pandas.
-I haven't tried it yet as of august 2023.
+I haven't tried it yet as of September 2024.
 
 URL: <https://www.pola.rs/>
 
@@ -177,6 +186,12 @@ To work with genome annotations.
 
 URL: <https://daler.github.io/gffutils/>
 
+### pyranges
+
+To work with genome annotations.
+
+URL: <https://pyranges.readthedocs.io/>
+
 ### pybedtools
 
 Wrapper around bedtools, to work with genomic intervals.
@@ -267,7 +282,7 @@ URL: <https://python-charts.com/>
 
 A way to store jupyter notebooks in a more human-readable format (without
 outputs), possibly paired with standard .ipynb notebook.
-As of january 2024, I haven't tried it.
+As of September 2024, I haven't tried it.
 
 URL: <https://github.com/mwouts/jupytext>