Add package update detection on Content tab (#13807)

doc/client_lua_api.md

@@ -672,6 +672,9 @@ Minetest namespace reference
    * If a flag in this table is set to true, the feature is RESTRICTED.
    * Possible flags: `load_client_mods`, `chat_messages`, `read_itemdefs`,
                    `read_nodedefs`, `lookup_nodes`, `read_playerinfo`
+* `minetest.urlencode(str)`: Encodes non-unreserved URI characters by a
+  percent sign followed by two hex digits. See
+  [RFC 3986, section 2.3](https://datatracker.ietf.org/doc/html/rfc3986#section-2.3).
 
 ### Logging
 * `minetest.debug(...)`
@@ -1551,4 +1554,4 @@ Same as `image`, but does not accept a `position`; the position is instead deter
     texture = "image.png",
     --  ^ Uses texture (string)
 }
-```
+```

doc/fst_api.txt

@@ -50,7 +50,7 @@ methods:
   ^ tab:
   {
 	name               = "tabname",      -- name of tab to create
-	caption            = "tab caption",  -- text to show for tab header
+	caption            = "tab caption",  -- text to show for tab header. Either a string or a function: (tabview) -> string
 	cbf_button_handler = function(tabview, fields, tabname, tabdata), -- callback for button events
 	--TODO cbf_events         = function(tabview, event, tabname),           -- callback for events
 	cbf_formspec       = function(tabview, name, tabdata),            -- get formspec

doc/lua_api.md

@@ -5406,6 +5406,9 @@ Utilities
   use `colorspec_to_bytes` to generate raw RGBA values in a predictable way.
   The resulting PNG image is always 32-bit. Palettes are not supported at the moment.
   You may use this to procedurally generate textures during server init.
+* `minetest.urlencode(str)`: Encodes non-unreserved URI characters by a
+  percent sign followed by two hex digits. See
+  [RFC 3986, section 2.3](https://datatracker.ietf.org/doc/html/rfc3986#section-2.3).
 
 Logging
 -------

doc/menu_lua_api.md

@@ -101,7 +101,7 @@ HTTP Requests
 * `core.download_file(url, target)` (possible in async calls)
     * `url` to download, and `target` to store to
     * returns true/false
-* `minetest.get_http_api()` (possible in async calls)
+* `core.get_http_api()` (possible in async calls)
     * returns `HTTPApiTable` containing http functions.
     * The returned table contains the functions `fetch_sync`, `fetch_async` and
       `fetch_async_get` described below.
@@ -394,10 +394,13 @@ Helpers
   * eg. `string.trim("\n \t\tfoo bar\t ")` == `"foo bar"`
 * `core.is_yes(arg)` (possible in async calls)
   * returns whether `arg` can be interpreted as yes
-* `minetest.encode_base64(string)` (possible in async calls)
+* `core.encode_base64(string)` (possible in async calls)
   * Encodes a string in base64.
-* `minetest.decode_base64(string)` (possible in async calls)
+* `core.decode_base64(string)` (possible in async calls)
   * Decodes a string encoded in base64.
+* `core.urlencode(str)`: Encodes non-unreserved URI characters by a
+  percent sign followed by two hex digits. See
+  [RFC 3986, section 2.3](https://datatracker.ietf.org/doc/html/rfc3986#section-2.3).
 
 
 Async