X-Git-Url: https://git.openstreetmap.org./nominatim.git/blobdiff_plain/882f1823741f5c4bc6cceb4ad2d1f35eadc4f1ac..7ba5152493327d277115aab9b344b652decd3f2e:/docs/customize/Tokenizers.md

diff --git a/docs/customize/Tokenizers.md b/docs/customize/Tokenizers.md
index ee51fec0..49e86a50 100644
--- a/docs/customize/Tokenizers.md
+++ b/docs/customize/Tokenizers.md
@@ -17,6 +17,11 @@ they can be configured.
 
 ## Legacy tokenizer
 
+!!! danger
+    The Legacy tokenizer is deprecated and will be removed in Nominatim 5.0.
+    If you still use a database with the legacy tokenizer, you must reimport
+    it using the ICU tokenizer below.
+
 The legacy tokenizer implements the analysis algorithms of older Nominatim
 versions. It uses a special Postgresql module to normalize names and queries.
 This tokenizer is automatically installed and used when upgrading an older