inspircd: 3.18.0 -> 4.7.0

https://docs.inspircd.org/4/breaking-changes/
https://docs.inspircd.org/4/overview/

https://docs.inspircd.org/4/change-log/#inspircd-401
https://docs.inspircd.org/4/change-log/#inspircd-410
https://docs.inspircd.org/4/change-log/#inspircd-420
https://docs.inspircd.org/4/change-log/#inspircd-430
https://docs.inspircd.org/4/change-log/#inspircd-440
https://docs.inspircd.org/4/change-log/#inspircd-450
https://docs.inspircd.org/4/change-log/#inspircd-460
https://docs.inspircd.org/4/change-log/#inspircd-470

Packaging-relevant changes:

- inspircd no longer has the start subcommand, but needs to be invoked
directly.
- New extra modules: log_syslog and log_json
- Removed extra modules: regex_tre, regex_pcre, ssl_mbedtls
You probably should not use them anymore, but they can be
obtained via the module manager in theory — though I doubt it works
with Nix (another item for the todo list, I guess):
https://docs.inspircd.org/4/module-manager/

doc/release-notes/rl-2511.section.md

···
   The binary name remains `webfontkitgenerator`.
   The `webfontkitgenerator` package is an alias to `webfont-bundler`.
 
+- `inspircd` has been updated to the v4 release series. Please refer to the upstream documentation for [general information](https://docs.inspircd.org/4/overview/#v4-overview) and a list of [breaking changes](https://docs.inspircd.org/4/breaking-changes/).
+
 - `lima` package now only includes the guest agent for the host's architecture by default. If your guest VM's architecture differs from your Lima host's, you'll need to enable the `lima-additional-guestagents` package by setting `withAdditionalGuestAgents = true` when overriding lima with this input.
 
 - `vmware-horizon-client` was renamed to `omnissa-horizon-client`, following [VMware's sale of their end-user business to Omnissa](https://www.omnissa.com/insights/introducing-omnissa-the-former-vmware-end-user-computing-business/). The binary has been renamed from `vmware-view` to `horizon-client`.

nixos/modules/services/networking/inspircd.nix

···
       serviceConfig = {
         Type = "simple";
         ExecStart = ''
-          ${lib.getBin cfg.package}/bin/inspircd start --config ${configFile} --nofork --nopid
+          ${lib.getBin cfg.package}/bin/inspircd --config ${configFile} --nofork --nopid
         '';
         DynamicUser = true;
       };

pkgs/by-name/in/inspircd/package.nix

···
 
   # compatible if libc is compatible
   libcModules = [
+    "log_syslog"
     "regex_posix"
     "sslrehashsignal"
   ];
···
       # GPLv2 compatible dependencies
       "argon2"
       "ldap"
+      "log_json"
       "mysql"
       "pgsql"
-      "regex_pcre"
       "regex_pcre2"
       "regex_re2"
-      "regex_tre"
       "sqlite3"
       "ssl_gnutls"
     ]
···
   openldap,
   libpq,
   libmysqlclient,
-  pcre,
   pcre2,
-  tre,
   re2,
   sqlite,
   gnutls,
   libmaxminddb,
   openssl,
-  mbedtls,
+  yyjson,
   # For a full list of module names, see https://docs.inspircd.org/packaging/
   extraModules ? compatibleModules lib stdenv,
 }:
···
       )
     ];
     ldap = [ openldap ];
+    log_json = [ yyjson ];
+    log_syslog = [ ];
     mysql = [ libmysqlclient ];
     pgsql = [ libpq ];
-    regex_pcre = [ pcre ];
     regex_pcre2 = [ pcre2 ];
     regex_re2 = [ re2 ];
-    regex_tre = [ tre ];
     sqlite3 = [ sqlite ];
     ssl_gnutls = [ gnutls ];
     # depends on stdenv.cc.libc
···
     regex_stdlib = [ ];
     # GPLv2 incompatible
     geo_maxmind = [ libmaxminddb ];
-    ssl_mbedtls = [ mbedtls ];
     ssl_openssl = [ openssl ];
   };
 
···
 
 stdenv.mkDerivation rec {
   pname = "inspircd";
-  version = "3.18.0";
+  version = "4.7.0";
 
   src = fetchFromGitHub {
     owner = "inspircd";
     repo = "inspircd";
     rev = "v${version}";
-    sha256 = "sha256-Aulhg2CbtcpsxkH5kXkp4EoZF5/F9pOXJc1S08S5P08=";
+    sha256 = "sha256-/LiniV5moKGX7K6Hfzq1mxEBZ+sqnScQxT0AApiBPaA=";
   };
 
   outputs = [