docs: update 5.6 release notes and bug fix.

Author: NotHimmel

CN/modules/ROOT/pages/1.adoc

@@ -4,78 +4,94 @@
 
 == 版本概览
 
-[*发布日期：2026 年 6 月 17 日*]
+[*发布日期：2026 年 9 月 17 日*]
 
-IvorySQL 5.4 基于 PostgreSQL 18.4 构建，包含多项错误修复。有关更新的完整列表，请访问我们的 https://docs.ivorysql.org/[文档站点]。
+IvorySQL 5.6 将 PostgreSQL 内核升级至 18.6，并针对 Oracle 兼容性、内存安全、客户端接口和扩展构建提供多项修复。有关更新的完整列表，请访问我们的 [文档站点](https://docs.ivorysql.org/)。
 
-== 增强内容
+== 上游更新
+
+由于在发布准备过程中发现了回归问题，PostgreSQL 18.5 未发布。
 
-- PostgreSQL 18.4
+- PostgreSQL 18.6
 
-1. 修复处理启动数据包时可能出现的无限递归问题。
-2. 修复内存分配计算中的各种整数溢出问题。
-3. 修复 pg_createsubscriber 中订阅名称未正确添加引号的问题。
-4. 修复逻辑复制源检查中对象名称未正确添加引号的问题。
-5. 修复 `ts_headline()` 中未拒绝超长选项的问题。
-6. 修复恢复属性 MCV 统计信息时错误输入的检测问题。
+1. 通过新增的服务器参数 `output_plugin_libraries`，将逻辑解码输出插件限制为该参数指定的集合。
+2. 修复 contrib/pgcrypto 的 PGP 加密，使其能够检测不支持的加密算法。
+3. 修复 psql：即使脚本中的 `COPY ... FROM STDIN` 命令在发送 `PGRES_COPY_IN` 前失败，也能跳过该命令后的内联数据。
+4. 在此前未执行检查的位置检查数据类型的 `USAGE` 权限。
+5. 角色变更后，使依赖角色的缓存计划失效。
+6. 确保并行 GIN 索引构建能够正确更新表的 `pg_class.reltuples` 值。
 
-更多详情，请参阅 https://www.postgresql.org/docs/release/18.4/[PostgreSQL 18.4 发布说明]。
+更多详情，请参阅 [PostgreSQL 18.6 发布说明](https://www.postgresql.org/docs/release/18.6/)。
 
-== 新特性
+== 增强内容
 
-- 升级至 PG 18.4 内核：Feature https://github.com/IvorySQL/IvorySQL/pull/1344[#1344] +
-  PostgreSQL 内核已升级至 18.4 版本。
+- 升级至 PG 18.6 内核：Feature [#1719](https://github.com/IvorySQL/IvorySQL/pull/1719) +
+  PostgreSQL 内核已升级至 18.6 版本。
 
-- [IvorySQL Skills](https://github.com/IvorySQL/skills)
-  帮助 AI 助手成为 IvorySQL 数据库专家.。
+- AI 辅助贡献指南：Feature [#1473](https://github.com/IvorySQL/IvorySQL/pull/1473) +
+  制定相关指南，涵盖许可证合规、人工审查与签署责任、AI 工具归属标注、AI 生成代码占比披露，以及负责任地参与代码审查。
 
-- http://trial.ivorysql.org/[在线体验]：IvorySQL 5.4：Feature https://github.com/IvorySQL/ivorysql-wasm/pull/10[#10] +
-  上线交互式浏览器环境，用户可实时体验与评估 IvorySQL 5.4，无需安装。
+- IvorySQL 5.6 [在线体验](http://trial.ivorysql.org/)：Feature [#10](https://github.com/IvorySQL/ivorysql-wasm/pull/10) +
+  现已提供交互式浏览器环境，用户可实时体验与评估 IvorySQL 5.6，无需安装。
 
-- 全平台打包：+
-  为 X86、ARM、MIPS、龙芯架构等平台提供多架构安装介质。
+- 全平台打包 +
+  为 X86、ARM、MIPS 和龙芯架构提供多平台安装介质。
 
 - 容器化部署支持 +
-  支持通过 Docker Compose、Podman、Swarm、Helm 以及 IvorySQL 5.4 Operator 一键部署单机或高可用的 IvorySQL 5.4 集群。
+  支持通过 Docker Compose、Podman、Swarm、Helm 以及 IvorySQL 5.6 Operator 一键部署单机或高可用的 IvorySQL 5.6 集群。
 
-- 发布 IvorySQL Cloud 5.4（统一全生命周期与可视化控制平台） +
-  提供可视化托管控制平台，覆盖订阅、端到端的全生命周期编排以及生态集成。
+- 发布 IvorySQL Cloud 5.6（数据库全生命周期可视化管理平台） +
+  提供全托管的可视化控制平台，负责 IvorySQL 5.6 数据库订阅、端到端的全生命周期编排，并集成周边生态服务。
 
-- PostgreSQL Extensions +
-  新增支持 10 个 PostgreSQL 扩展：pg_cron、pgAudit、PostGIS、pgRouting、PGroonga、ddlx、pgsql-http、system_stats、plpgsql_check、pgvector。
+- PostgreSQL 扩展 +
+  支持更多 PostgreSQL 扩展及工具：pg_cron、pgaudit、PostGIS、pgRouting、PGroonga、ddlx、pgsql-http、plpgsql_check、pgvector、system_stats、zhparser、pg_partman、pg_jieba、pg_textsearch、AGE、redis_fdw、pg_hint_plan、pg_show_plans、pgagent、pgBouncer、pg_ai_query、pg_bigm、pg_curl、pg_stat_monitor、wal2json、pg_bulkload、pg_profile、pg_repack、pg_readonly、set_user、pgtt、pgnodemx。
 
-- 增强了 EXTRACT 函数，在 SQL 查询中接受更多语法变体。: PR https://github.com/IvorySQL/IvorySQL/pull/1222[#1222]
+== 缺陷修复
+
+- 修复 Oracle 兼容的 interval 乘除法中可能发生的溢出和 NaN 处理不当问题：PR [#1211](https://github.com/IvorySQL/IvorySQL/pull/1211)
+- 禁止通过 `ALTER USER/ROLE/DATABASE SET` 持久化 `ivorysql.compatible_mode`，并封堵 `SET ... TO DEFAULT` 和针对该参数执行 `RESET` 的绕过方式：PR [#1372](https://github.com/IvorySQL/IvorySQL/pull/1372)
+- 修复表达式求值期间，带包限定符的变量引用被解析为无关局部变量的问题：PR [#1381](https://github.com/IvorySQL/IvorySQL/pull/1381)
+- 修复使用 GCC 14 及更高版本时的构建失败问题：PR [#1385](https://github.com/IvorySQL/IvorySQL/pull/1385)
+- 修复序列中相互冲突或重复的 `SHARD` 选项校验问题：PR [#1401](https://github.com/IvorySQL/IvorySQL/pull/1401)
+- 修复第三方 PostgreSQL 扩展针对 IvorySQL 构建时的失败问题：PR [#1448](https://github.com/IvorySQL/IvorySQL/pull/1448)
+- 使 `ivorysql.enable_case_switch` 在 `SHOW ALL` 中可见，并可通过配置文件进行配置：PR [#1450](https://github.com/IvorySQL/IvorySQL/pull/1450)
+- 修复 `DBMS_UTILITY` 回溯和调用栈输出中缺少包名及模式限定错误的问题：PR [#1471](https://github.com/IvorySQL/IvorySQL/pull/1471)
+- 修复 `REGEXP_COUNT`、`REGEXP_SUBSTR`、`REGEXP_INSTR` 和 `REGEXP_REPLACE` 中换行符处理错误以及 `m`/`n` 选项行为异常的问题：PR [#1489](https://github.com/IvorySQL/IvorySQL/pull/1489)
+- 修复 Ivyresult 提前返回路径上的内存泄漏问题：PR [#1556](https://github.com/IvorySQL/IvorySQL/pull/1556)
+- 修复 psql 命名绑定查询转义和 `\bind` 处理中发生的堆缓冲区越界问题：PR [#1569](https://github.com/IvorySQL/IvorySQL/pull/1569)
+- 修复 XML 函数使用过长的命名空间前缀或 URL 时发生的堆缓冲区溢出问题：PR [#1827](https://github.com/IvorySQL/IvorySQL/pull/1827)
 
 == 源码仓库
 
-IvorySQL 的主要代码仓库：
+IvorySQL 的开发工作主要在以下四个代码仓库中进行：
 
 - IvorySQL 数据库源码：https://github.com/IvorySQL/IvorySQL
 - IvorySQL 官网：https://github.com/IvorySQL/Ivory-www
-- IvorySQL 文档：https://github.com/IvorySQL/IvorySQL-docs
+- IvorySQL 文档：https://github.com/IvorySQL/IvorySQL_docs
 - IvorySQL Docker：https://github.com/IvorySQL/docker_library
 
 == 贡献者名单
 
 以下人员（按字母顺序）作为补丁作者、提交者、审阅者、测试者或问题报告者，为本次发布做出了贡献。
 
-* 3296442201
-* Adria0615
-* anapplebeee
+* 123123213weqw
+* Aias00
+* ai-yang
+* btlqql
 * Cédric Villemain
+* db-nikhil
+* digoal
+* enkilee
+* goeason-world
 * Grant Zhou
-* jerome-peng
-* liketoochao
-* movead123
-* msdnchina
-* Pierre Forstmann
-* Rophy Tsai
+* lispking
+* messere1
 * tian1220A
-* xiaoyu509
-* yes7rose
+* xuhuicai
+* yaozichen2025
 * Yasir Hussain Shah
-* z20081120087
-* zuinuan123
+* yyqdbngt
+* Z95-cmyk
 * 高雪玉
 * 韩建桥
 * 矫顺田
@@ -90,3 +106,5 @@ IvorySQL 的主要代码仓库：
 * 严少安
 * 赵法威
 * 张哲
+
+[完整变更记录](https://github.com/IvorySQL/IvorySQL/compare/IvorySQL_5.4...IvorySQL_5.6)

CN/modules/ROOT/pages/5.14.adoc

@@ -69,7 +69,7 @@ sudo make USE_PGXS=1 \
 
 == 配置预加载
 
-在 `postgresql.conf` 中将 pgnodemx 追加到已有的 `shared_preload_libraries`，不要删除 IvorySQL 原有预加载库。
+在 `ivorysql.conf` 中将 pgnodemx 追加到已有的 `shared_preload_libraries`，不要删除 IvorySQL 原有预加载库。
 
 [source,ini]
 ----

CN/modules/ROOT/pages/7.3.adoc

@@ -112,7 +112,7 @@ ERROR:  relation "Normal_3" does not exist
 LINE 1: select * from "Normal_3";
 
 ivorysql=# drop table "NORMAL_1";
-DROP TABLE
+ERROR:  relation "Normal_1" does not exist
 ivorysql=# drop table "Normal_2";
 DROP TABLE
 ivorysql=# drop table "normal_3";

EN/modules/ROOT/pages/1.adoc

@@ -1,51 +1,65 @@
-
 :sectnums:
 :sectnumlevels: 5
 
 
 == Version Overview
 
-[*Release Date: June 17, 2026*]
+[*Release Date: September 17, 2026*]
 
-IvorySQL 5.4 is built on PostgreSQL 18.4 and includes a variety of bug fixes. For a comprehensive list of updates, please visit our [documentation site](https://docs.ivorysql.org/).
+IvorySQL 5.6 updates the PostgreSQL core to version 18.6 and delivers fixes for Oracle compatibility, memory safety, client interfaces, and extension builds. For a comprehensive list of updates, please visit our [documentation site](https://docs.ivorysql.org/).
 
-== Enhancements
+== Upstream Updates
 
-- PostgreSQL 18.4
+PostgreSQL 18.5 was not released because a regression was discovered during release preparation.
 
-1. Prevent unbounded recursion while processing startup packets.
-2. Fix assorted integer overflows in memory-allocation calculations.
-3. Properly quote subscription names in pg_createsubscriber.
-4. Properly quote object names in logical replication origin checks.
-5. Reject over-length options in `ts_headline()`.
-6. Detect faulty input when restoring attribute MCV statistics.
+- PostgreSQL 18.6
 
-For further details, visit https://www.postgresql.org/docs/release/18.4/[PostgreSQL's release notes].
+1. Restrict logical decoding output plugins to the set specified by a new server parameter `output_plugin_libraries`.
+2. Fix contrib/pgcrypto's PGP encryption to detect unsupported ciphers.
+3. Fix psql to skip in-line data following a scripted `COPY ... FROM STDIN` command, even if the `COPY` fails before sending `PGRES_COPY_IN`.
+4. Check for `USAGE` privilege on data types in places that formerly failed to check that.
+5. Invalidate role-dependent cached plans after role changes.
+6. Ensure that parallel GIN index builds update the table's `pg_class.reltuples` value correctly.
 
-== New Features
+For further details, visit [PostgreSQL 18.6 release notes](https://www.postgresql.org/docs/release/18.6/).
 
-- Upgrade to PG 18.4 kernel: Feature https://github.com/IvorySQL/IvorySQL/pull/1344[#1344] +
-  PostgreSQL kernel upgraded to version 18.4.
+== Enhancements
 
-- [IvorySQL Skills](https://github.com/IvorySQL/skills)
-  Empowering AI assistants to become IvorySQL database experts.
+- Upgrade to PG 18.6 kernel: Feature [#1719](https://github.com/IvorySQL/IvorySQL/pull/1719) +
+  PostgreSQL kernel upgraded to version 18.6.
 
-- http://trial.ivorysql.org/[Online Experience]: IvorySQL 5.4: Feature https://github.com/IvorySQL/ivorysql-wasm/pull/10[#10] +
-  An interactive, browser-based environment will be launched to allow users to explore and evaluate IvorySQL 5.4 in real time — no installation required.
+- AI-assisted contribution guidelines: Feature [#1473](https://github.com/IvorySQL/IvorySQL/pull/1473) +
+  Establish guidelines covering licensing compliance, human review and sign-off responsibilities, AI tool attribution, disclosure of AI-generated code percentages, and responsible participation in code reviews.
 
-- Packaging for All Platforms: +
-  Provides multi-platform media packages for X86, ARM, MIPS, LoongArch architecture.
+- IvorySQL 5.6 [Online Experience](http://trial.ivorysql.org/): Feature [#10](https://github.com/IvorySQL/ivorysql-wasm/pull/10) +
+  An interactive, browser-based environment is now available, allowing users to explore and evaluate IvorySQL 5.6 in real time — no installation required.
+
+- Packaging for All Platforms +
+  Provides multi-platform media packages for X86, ARM, MIPS, and LoongArch architectures.
 
 - Containerized Deployment Support +
-  Supports one-click deployment of standalone or highly available IvorySQL 5.4 clusters via Docker Compose, Podman, Swarm, Helm, and the IvorySQL 5.4 Operator.
+  Supports one-click deployment of standalone or highly available IvorySQL 5.6 clusters via Docker Compose, Podman, Swarm, Helm, and the IvorySQL 5.6 Operator.
 
-- IvorySQL Cloud 5.4 released (Visual Database Lifecycle Management Platform) +
-  Offers a fully managed, graphical control plane that handles IvorySQL 5.4 database subscriptions, orchestrates end-to-end lifecycle operations, and integrates surrounding ecosystem services.
+- IvorySQL Cloud 5.6 released (Visual Database Lifecycle Management Platform) +
+  Offers a fully managed, graphical control plane that handles IvorySQL 5.6 database subscriptions, orchestrates end-to-end lifecycle operations, and integrates surrounding ecosystem services.
 
 - PostgreSQL Extensions +
-  Support for 10 Additional PostgreSQL Extensions: pg_cron, pgAudit, PostGIS, pgRouting, PGroonga, ddlx, pgsql-http, system_stats, plpgsql_check, pgvector.
-
-- Enhanced the EXTRACT function support to accept additional syntax variations in SQL queries: PR https://github.com/IvorySQL/IvorySQL/pull/1222[#1222]
+  Support for Additional PostgreSQL Extensions and Tools: pg_cron, pgaudit, PostGIS, pgRouting, PGroonga, ddlx, pgsql-http, plpgsql_check, pgvector, system_stats, zhparser, pg_partman, pg_jieba, pg_textsearch, AGE, redis_fdw, pg_hint_plan, pg_show_plans, pgagent, pgBouncer, pg_ai_query, pg_bigm, pg_curl, pg_stat_monitor, wal2json, pg_bulkload, pg_profile, pg_repack, pg_readonly, set_user, pgtt, pgnodemx.
+
+== Fixed Issues
+
+- Fix potential overflow and NaN mishandling in Oracle-compatible interval multiplication and division: PR [#1211](https://github.com/IvorySQL/IvorySQL/pull/1211)
+- Disallow persisting `ivorysql.compatible_mode` through `ALTER USER/ROLE/DATABASE SET`, and close the `SET ... TO DEFAULT` and parameter-specific `RESET` bypasses: PR [#1372](https://github.com/IvorySQL/IvorySQL/pull/1372)
+- Fix package-qualified variable references resolving to unrelated local variables during expression evaluation: PR [#1381](https://github.com/IvorySQL/IvorySQL/pull/1381)
+- Fix build failures with GCC 14 and later: PR [#1385](https://github.com/IvorySQL/IvorySQL/pull/1385)
+- Fix validation of conflicting or repeated `SHARD` options on sequences: PR [#1401](https://github.com/IvorySQL/IvorySQL/pull/1401)
+- Fix build failures of third-party PostgreSQL extensions against IvorySQL: PR [#1448](https://github.com/IvorySQL/IvorySQL/pull/1448)
+- Make `ivorysql.enable_case_switch` visible in `SHOW ALL` and configurable in configuration files: PR [#1450](https://github.com/IvorySQL/IvorySQL/pull/1450)
+- Fix missing package names and wrong schema qualification in `DBMS_UTILITY` backtrace and call-stack output: PR [#1471](https://github.com/IvorySQL/IvorySQL/pull/1471)
+- Fix incorrect newline handling and `m`/`n` option behavior in `REGEXP_COUNT`, `REGEXP_SUBSTR`, `REGEXP_INSTR`, and `REGEXP_REPLACE`: PR [#1489](https://github.com/IvorySQL/IvorySQL/pull/1489)
+- Fix Ivyresult memory leaks on early-return paths: PR [#1556](https://github.com/IvorySQL/IvorySQL/pull/1556)
+- Fix heap buffer overruns in psql named-bind query escaping and `\bind` handling: PR [#1569](https://github.com/IvorySQL/IvorySQL/pull/1569)
+- Fix heap buffer overflows when long namespace prefixes or URLs are used in XML functions: PR [#1827](https://github.com/IvorySQL/IvorySQL/pull/1827)
 
 == Source Code
 
@@ -60,34 +74,37 @@ IvorySQL's development is maintained across four main repositories:
 
 The following individuals (in alphabetical order) have contributed to this release as patch authors, committers, reviewers, testers, or reporters of issues.
 
-* 3296442201
-* Adria0615
-* anapplebeee
+* 123123213weqw
+* Aias00
+* ai-yang
+* btlqql
 * Cédric Villemain
+* db-nikhil
+* digoal
+* enkilee
 * Fawei Zhao
 * Ge Sui
+* goeason-world
 * Grant Zhou
 * hanjianqiao
-* jerome-peng
-* liketoochao
-* movead123
-* msdnchina
-* Pierre Forstmann
-* Rophy Tsai
-* Shawn Yan
+* lispking
+* messere1
+* NotHimmel
 * Shuntian Jiao
 * Steven Niu
 * tian1220A
-* xiaoyu509
-* Xiaohui Liu
 * Xiangyu Liang
+* Xiaohui Liu
 * Xinjie LYU
 * Xueyu Gao
-* yes7rose
+* xuhuicai
+* yaozichen2025
 * Yasir Hussain Shah
-* z20081120087
+* yyqdbngt
+* Z95-cmyk
 * Zhe Zhang
-* Zhenhao Pan
 * Zheng Tao
+* Zhenhao Pan
 * Zhuoyan Shi
-* zuinuan123
+
+[Complete Changelog](https://github.com/IvorySQL/IvorySQL/compare/IvorySQL_5.4...IvorySQL_5.6)

EN/modules/ROOT/pages/5.14.adoc

@@ -69,7 +69,7 @@ Confirm that the selected `pg_config` belongs to IvorySQL 5.4 before compiling:
 
 == Configure preloading
 
-Append pgnodemx to the existing `shared_preload_libraries` value in `postgresql.conf`. Do not remove IvorySQL's existing preload libraries.
+Append pgnodemx to the existing `shared_preload_libraries` value in `ivorysql.conf`. Do not remove IvorySQL's existing preload libraries.
 
 [source,ini]
 ----

EN/modules/ROOT/pages/7.3.adoc

@@ -113,7 +113,7 @@ ERROR:  relation "Normal_3" does not exist
 LINE 1: select * from "Normal_3";
 
 ivorysql=# drop table "NORMAL_1";
-DROP TABLE
+ERROR:  relation "Normal_1" does not exist
 ivorysql=# drop table "Normal_2";
 DROP TABLE
 ivorysql=# drop table "normal_3";