Update DEPRECATIONS.md

Author: mtrezza

DEPRECATIONS.md

@@ -15,7 +15,7 @@ The following is a list of deprecations, according to the [Deprecation Policy](h
 | DEPPS9  | Rename LiveQuery `fields` option to `keys`                                                   | [#8389](https://github.com/parse-community/parse-server/issues/8389) | 6.0.0 (2023)                    | 7.0.0 (2024)                    | removed               | -     |
 | DEPPS10 | Encode `Parse.Object` in Cloud Function and remove option `encodeParseObjectInCloudFunction` | [#8634](https://github.com/parse-community/parse-server/issues/8634) | 6.2.0 (2023)                    | 9.0.0 (2026)                    | deprecated            | -     |
 | DEPPS11 | Replace `PublicAPIRouter` with `PagesRouter`                                                 | [#7625](https://github.com/parse-community/parse-server/issues/7625) | 8.0.0 (2025)                    | 9.0.0 (2026)                    | deprecated            | -     |
-| DEPPS12 | Database option `allowPublicExplain` defaults to `true`                                      | [#7519](https://github.com/parse-community/parse-server/issues/7519) | 8.5.0 (2025)                    | 9.0.0 (2026)                    | removed               | -     |
+| DEPPS12 | Database option `allowPublicExplain` defaults to `false`                                      | [#7519](https://github.com/parse-community/parse-server/issues/7519) | 8.5.0 (2025)                    | 9.0.0 (2026)                    | removed               | -     |
 
 [i_deprecation]: ## "The version and date of the deprecation."
 [i_removal]: ## "The version and date of the planned removal."