X-Git-Url: https://git.openstreetmap.org./nominatim.git/blobdiff_plain/f6e792f31b105447d86c78ffa10ac343a6b5e332..f535340d5af0b59c1bbdfde885b62dd483a9e38e:/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