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 The minimum supported version of poetry is now 1.2. This should only affect
 those installing from a source checkout.
 
+## Rust requirement in the next release
+
+From the next major release (v1.68.0) installing Synapse from a source checkout
+will require a recent Rust compiler. Those using packages or
+`pip install matrix-synapse` will not be affected.
+
+The simplest way of installing Rust is via [rustup.rs](https://rustup.rs/)
+
+## SQLite version requirement in the next release
+
+From the next major release (v1.68.0) Synapse will require SQLite 3.27.0 or 
+higher. Synapse v1.67.0 will be the last major release supporting SQLite
+versions 3.22 to 3.26.
+
+Those using docker images or Debian packages from Matrix.org will not be
+affected. If you have installed from source, you should check the version of 
+SQLite used by Python with:
+
+```shell
+python -c "import sqlite3; print(sqlite3.sqlite_version)"
+```
+
+If this is too old, refer to your distribution for advice on upgrading.
+
 # Upgrading to v1.66.0
 
 ## Delegation of email validation no longer supported