lightningd: deprecate experimental-offers option.

Signed-off-by: Rusty Russell <[email protected]>
Changelog-Deprecated: Config: `experimental-offers` (it's now the default).

Author: rustyrussell

.msggen.json

@@ -7071,7 +7071,7 @@
         },
         "ListConfigs.configs.experimental-offers": {
             "added": "pre-v0.10.1",
-            "deprecated": null
+            "deprecated": "v24.11"
         },
         "ListConfigs.configs.experimental-offers.set": {
             "added": "pre-v0.10.1",
@@ -7083,7 +7083,7 @@
         },
         "ListConfigs.configs.experimental-onion-messages": {
             "added": "pre-v0.10.1",
-            "deprecated": null
+            "deprecated": "v24.08"
         },
         "ListConfigs.configs.experimental-onion-messages.set": {
             "added": "pre-v0.10.1",

cln-rpc/src/model.rs

@@ -18687,6 +18687,10 @@
                 }
               },
               "experimental-onion-messages": {
+                "deprecated": [
+                  "v24.08",
+                  "v25.02"
+                ],
                 "type": "object",
                 "additionalProperties": false,
                 "required": [
@@ -18711,6 +18715,10 @@
               "experimental-offers": {
                 "type": "object",
                 "additionalProperties": false,
+                "deprecated": [
+                  "v24.11",
+                  "v25.05"
+                ],
                 "required": [
                   "set",
                   "source"

contrib/msggen/msggen/schema.json

@@ -36,6 +36,7 @@ hidden: false
 | decodepay                            | Command            | v24.11           | v25.11         | Use `decode` which is more powerful (since v23.05)                                                                                     |
 | close.tx                             | Field              | v24.11           | v25.11         | Use txs array instead                                                                                                                  |
 | close.txid                           | Field              | v24.11           | v25.11         | Use txids array instead                                                                                                                |
+| experimental-offers                  | Config             | v24.11           | v25.05         | Now the default                                                                                                                        |
 
 Inevitably there are features which need to change: either to be generalized, or removed when they can no longer be supported.
 

doc/developers-guide/deprecations.md

@@ -596,8 +596,6 @@ Because this is a chained hook, the daemon expects the result to be `{'result':
 
 ### `onion_message_recv` and `onion_message_recv_secret`
 
-> 🚧 experimental-offers only
-
 These two hooks are almost identical, in that they are called when an onion message is received.
 
 `onion_message_recv` is used for unsolicited messages (where the source knows that it is sending to this node), and `onion_message_recv_secret` is used for messages which use a blinded path we supplied.  The latter hook will have a `pathsecret` field, the former never will.

doc/developers-guide/plugin-development/hooks.md

@@ -492,17 +492,6 @@ Supported features can be listed with `lightningd --list-features-only`
 
 A build _with_ `--enable-experimental-features` flag hard-codes some of below options as enabled, ignoring their command line flag. It may also add support for even more features. The safest way to determine the active configuration is by checking `listconfigs` or by looking at `our_features` (bits) in `getinfo`.
 
-- **experimental-onion-messages**
-
-  Specifying this enables sending, forwarding and receiving onion messages, which are in draft status in the [bolt](https://github.com/lightning/bolts) specifications (PR #759). A build with `--enable-experimental-features` usually enables this via  
-  experimental-offers, see below.
-
-- **experimental-offers**
-
-  Specifying this enables the `offers` and `fetchinvoice` plugins and corresponding functionality, which are in draft status [bolt](https://github.com/lightning/bolts)#798 as [bolt12](https://github.com/rustyrussell/lightning-rfc/blob/guilt/offers/12-offer-encoding.md).  
-  A build with `--enable-experimental-features` enables this permanently and usually  
-  enables experimental-onion-messages as well.
-
 - **fetchinvoice-noconnect**
 
   Specifying this prevents `fetchinvoice` and `sendinvoice` from trying to connect directly to the offering node as a last resort.

doc/getting-started/getting-started/configuration.md

@@ -770,10 +770,6 @@ Experimental options are subject to breakage between releases: they
 are made available for advanced users who want to test proposed
 features.
 
-* **experimental-offers**
-
-  Specifying this enables `offers` functionality, which is in draft status ([bolt][bolt] #798) as [bolt12][bolt12].
-
 * **fetchinvoice-noconnect**
 
   Specifying this prevents `fetchinvoice`, `sendinvoice` and replying

doc/lightningd-config.5.md

@@ -552,6 +552,10 @@
             }
           },
           "experimental-onion-messages": {
+            "deprecated": [
+              "v24.08",
+              "v25.02"
+            ],
             "type": "object",
             "additionalProperties": false,
             "required": [
@@ -576,6 +580,10 @@
           "experimental-offers": {
             "type": "object",
             "additionalProperties": false,
+            "deprecated": [
+              "v24.11",
+              "v25.05"
+            ],
             "required": [
               "set",
               "source"

doc/schemas/lightning-listconfigs.json

@@ -1312,7 +1312,10 @@ static char *opt_set_anchor_zero_fee_htlc_tx(struct lightningd *ld)
 
 static char *opt_set_offers(struct lightningd *ld)
 {
-	/* FIXME: Deprecate */
+	if (!opt_deprecated_ok(ld, "experimental-offers", NULL,
+			       "v24.11", "v25.05"))
+		return "--experimental-offers has been deprecated (now the default)";
+
 	return NULL;
 }
 
@@ -1499,7 +1502,7 @@ static void register_opts(struct lightningd *ld)
 				 opt_hidden);
 	opt_register_early_noarg("--experimental-offers",
 				 opt_set_offers, ld,
-				 "EXPERIMENTAL: enable send and receive of offers");
+				 opt_hidden);
 	opt_register_early_noarg("--experimental-shutdown-wrong-funding",
 				 opt_set_shutdown_wrong_funding, ld,
 				 "EXPERIMENTAL: allow shutdown with alternate txids");