diff --git a/docs/connected_services/how_to/APIs.md b/docs/connected_services/how_to/APIs.md
index 42a7eb3..38e6e88 100644
--- a/docs/connected_services/how_to/APIs.md
+++ b/docs/connected_services/how_to/APIs.md
@@ -1,6 +1,6 @@
 [PREVIOUS PAGE](explanation.md) | [NEXT PAGE](endpoints.md)
 
-CCash is backwards compatible, so even if a language API does not support the newester version it can still call the old endpoints.
+CCash is backwards compatible, so even if a language API does not support the newester version it can still call the old endpoints. Only when the major version increments are deprecated features made defunct (e.g `v1.0.0 -> v2.0.0`), check [endpoints.md](endpoints.md) to avoid using deprecated endpoints.
 | author                                       | language |                                                                     | newest CCash supported version |
 | :------------------------------------------- | :------: | ------------------------------------------------------------------- | :----------------------------: |
 | [SpaceCat](https://github.com/SpaceCat-Chan) |  CCLua   | [CatsCCashLuaApi](https://github.com/SpaceCat-Chan/CatsCCashLuaApi) |            `v1.4.3`            |