Documentation: clarify OCR mode changes in v3 (#13666)

docs/advanced_usage.md

@@ -129,6 +129,10 @@ At a minimum you need to enable AI and choose an LLM backend:
   and/or [`PAPERLESS_AI_LLM_ENDPOINT`](configuration.md#PAPERLESS_AI_LLM_ENDPOINT). Ollama
   requires `PAPERLESS_AI_LLM_ENDPOINT` pointing at your Ollama server.
 
+See the community-maintained wiki page on
+[choosing AI models](https://github.com/paperless-ngx/paperless-ngx/wiki/AI-Model-Recommendations)
+for suggested generation and embedding models.
+
 ### AI-assisted suggestions
 
 With AI enabled, Paperless-ngx can suggest a title, tags, correspondent, document type,
@@ -808,7 +812,8 @@ Third-party parser plugins extend Paperless-ngx to support additional file
 formats. A plugin is a Python package that advertises itself under the
 `paperless_ngx.parsers` entry point group. Refer to the
 [developer documentation](development.md#making-custom-parsers) for how to
-create one.
+create one, or see the wiki for a community-maintained list of
+[parser plugins](https://github.com/paperless-ngx/paperless-ngx/wiki/Related-Projects#parser-plugins).
 
 !!! warning "Third-party plugins are not officially supported"
 

docs/configuration.md

@@ -2069,6 +2069,8 @@ suggestions. This setting is required to be set to true in order to use the AI f
 models supported by the current embedding backend. If not supplied, defaults to
 "text-embedding-3-small" for the OpenAI-compatible backend,
 "sentence-transformers/all-MiniLM-L6-v2" for Huggingface, and "embeddinggemma" for Ollama.
+See [choosing AI models](https://github.com/paperless-ngx/paperless-ngx/wiki/AI-Model-Recommendations)
+for language and resource considerations.
 
     Defaults to None.
 
@@ -2125,6 +2127,8 @@ setting is required to be set to use the AI features.
 : The model to use for the AI backend, i.e. "gpt-3.5-turbo", "gpt-4" or any of the models supported
 by the current backend. If not supplied, defaults to "gpt-3.5-turbo" for the OpenAI-compatible
 backend and "llama3.1" for Ollama.
+See [choosing AI models](https://github.com/paperless-ngx/paperless-ngx/wiki/AI-Model-Recommendations)
+for local versus remote and model-size considerations.
 
     Defaults to None.
 

docs/migration-v3.md

@@ -156,7 +156,7 @@ The new settings are independent:
 
 ### Database configuration
 
-If you changed OCR settings via the admin UI (ApplicationConfiguration), the database values are **migrated automatically** during the upgrade. `mode` values (`skip` / `skip_noarchive`) are mapped to their new equivalents and `skip_archive_file` values are converted to the new `archive_file_generation` field. After upgrading, review the OCR settings in the admin UI to confirm the migrated values match your intent.
+If you changed OCR settings via the admin UI (ApplicationConfiguration), the database values are **migrated automatically** during the upgrade. `mode` values (`skip` / `skip_noarchive`) are mapped to their new equivalents and explicit `skip_archive_file` values are converted to the new `archive_file_generation` field. Users who relied on the old defaults must set `archive_file_generation` to `always` to preserve the v2 behaviour of always creating an archive. After upgrading, review the OCR settings in the admin UI to confirm the migrated values match your intent.
 
 ### Action Required
 
@@ -165,8 +165,9 @@ Remove any `PAPERLESS_OCR_SKIP_ARCHIVE_FILE` variable from your environment. If
 ```bash
 # v2: skip OCR when text present, always archive
 PAPERLESS_OCR_MODE=skip
-# v3: equivalent (auto is the new default)
-# No change needed - auto is the default
+# v3: equivalent
+PAPERLESS_OCR_MODE=auto
+PAPERLESS_ARCHIVE_FILE_GENERATION=always
 
 # v2: skip OCR when text present, skip archive too
 PAPERLESS_OCR_MODE=skip_noarchive