diff --git a/unicode-data-core/Changelog.md b/unicode-data-core/Changelog.md
index 57acc022..208c12b9 100644
--- a/unicode-data-core/Changelog.md
+++ b/unicode-data-core/Changelog.md
@@ -1,6 +1,15 @@
 # Changelog
 
-## 0.4.0 (September 2022)
+## 15.0.0 (October 2022)
+
+- Rename package from `unicode-data` to `unicode-data-core`.
+  [`unicode-data`](https://hackage.haskell.org/package/unicode-data) is now
+  an all-in-one package with heavier dependencies.
+- New version scheme: `U.B.M`, where `U` is the Unicode standard major version
+  number, `B` marks a breaking change and `M` a non-breaking change per
+  [PVP](https://pvp.haskell.org/).
+
+## 0.4.0 (October 2022)
 
 - Update to [Unicode 15.0.0](https://www.unicode.org/versions/Unicode15.0.0/).
 
diff --git a/unicode-data-names/Changelog.md b/unicode-data-names/Changelog.md
index bc43a162..0830ba3c 100644
--- a/unicode-data-names/Changelog.md
+++ b/unicode-data-names/Changelog.md
@@ -1,6 +1,12 @@
 # Changelog
 
-## 0.2.0 (September 2022)
+## 15.0.0 (October 2022)
+
+- New version scheme: `U.B.M`, where `U` is the Unicode standard major version
+  number, `B` marks a breaking change and `M` a non-breaking change per
+  [PVP](https://pvp.haskell.org/).
+
+## 0.2.0 (October 2022)
 
 - Update to [Unicode 15.0.0](https://www.unicode.org/versions/Unicode15.0.0/).
 
diff --git a/unicode-data-scripts/Changelog.md b/unicode-data-scripts/Changelog.md
index b1f518c5..c28f34c5 100644
--- a/unicode-data-scripts/Changelog.md
+++ b/unicode-data-scripts/Changelog.md
@@ -1,6 +1,12 @@
 # Changelog
 
-## 0.2.0 (September 2022)
+## 15.0.0 (October 2022)
+
+- New version scheme: `U.B.M`, where `U` is the Unicode standard major version
+  number, `B` marks a breaking change and `M` a non-breaking change per
+  [PVP](https://pvp.haskell.org/).
+
+## 0.2.0 (October 2022)
 
 - Update to [Unicode 15.0.0](https://www.unicode.org/versions/Unicode15.0.0/).
 
diff --git a/unicode-data-security/Changelog.md b/unicode-data-security/Changelog.md
index 95028d8f..147197d2 100644
--- a/unicode-data-security/Changelog.md
+++ b/unicode-data-security/Changelog.md
@@ -1,6 +1,12 @@
 # Changelog
 
-## 0.2.0 (September 2022)
+## 15.0.0 (October 2022)
+
+- New version scheme: `U.B.M`, where `U` is the Unicode standard major version
+  number, `B` marks a breaking change and `M` a non-breaking change per
+  [PVP](https://pvp.haskell.org/).
+
+## 0.2.0 (October 2022)
 
 - Update to [Unicode 15.0.0](https://www.unicode.org/versions/Unicode15.0.0/).
 
diff --git a/unicode-data/Changelog.md b/unicode-data/Changelog.md
index f579376f..b184adfe 100644
--- a/unicode-data/Changelog.md
+++ b/unicode-data/Changelog.md
@@ -1,5 +1,104 @@
 # Changelog
 
-## 15.0.0
+## 15.0.0 (October 2022)
 
-Initial release
+### New version scheme
+
+`U.B.M`, where `U` is the Unicode standard major version
+number, `B` marks a breaking change and `M` a non-breaking change per
+[PVP](https://pvp.haskell.org/).
+
+### All-in-one package
+
+__WARNING:__ `unicode-data` is now an all-in-one package with heavier
+dependencies. You should use
+[`unicode-data-core`](https://hackage.haskell.org/package/unicode-data-core)
+if you only need modules from previous version.
+
+- Previous modules are now re-exported from the package
+  [`unicode-data-core`](https://hackage.haskell.org/package/unicode-data-core).
+- Re-export
+  [`unicode-data-names`](https://hackage.haskell.org/package/unicode-data-names).
+- Re-export
+  [`unicode-data-scripts`](https://hackage.haskell.org/package/unicode-data-scripts).
+- Re-export
+  [`unicode-data-security`](https://hackage.haskell.org/package/unicode-data-security).
+
+## 0.4.0 (October 2022)
+
+- Update to [Unicode 15.0.0](https://www.unicode.org/versions/Unicode15.0.0/).
+
+## 0.3.1 (September 2022)
+
+- Added full case conversions to `Unicode.Char.Case`:
+
+  - Case folding: `caseFoldMapping` and `toCaseFoldString`.
+  - Lower case: `lowerCaseMapping` and `toLowerString`.
+  - Upper case: `upperCaseMapping` and `toUpperString`.
+  - Title case: `titleCaseMapping` and `toTitleString`.
+  - Stream mechanism: `Unfold` and `Step`.
+
+- Added `isNumeric`, `numericValue` and `integerValue`
+  to `Unicode.Char.Numeric`.
+- Added the module `Unicode.Char.General.Blocks`.
+- Add compatibility module:
+
+  - `Unicode.Char.Numeric.Compat`
+
+### Deprecations
+
+- `Unicode.Char.Numeric.isNumber`: it will be replaced by `isNumeric`
+  in a _future_ version of this package.
+  Use the function in `Unicode.Char.Numeric.Compat` instead.
+
+## 0.3.0 (December 2021)
+
+- Support for big-endian architectures.
+- Added `unicodeVersion`.
+- Added `GeneralCategory` data type and corresponding `generalCategoryAbbr`,
+  `generalCategory` functions.
+- Added the following functions to `Unicode.Char.General`:
+  `isAlphabetic`, `isAlphaNum`,
+  `isControl`, `isMark`, `isPrint`, `isPunctuation`, `isSeparator`,
+  `isSymbol` and `isWhiteSpace`.
+- Added the module `Unicode.Char.Numeric`.
+- Add compatibility modules:
+
+  - `Unicode.Char.General.Compat`
+  - `Unicode.Char.Case.Compat`
+
+  These modules are compatible with `base:Data.Char`.
+- Re-export some functions from `Data.Char` in order to make `Unicode.Char`
+  a drop-in replacement in a _future_ version of this package.
+- Drop support for GHC 7.10.3
+
+### Deprecations
+
+- In `Unicode.Char.Case`:
+
+  - `isUpper`: use `isUpperCase` instead.
+  - `isLower`: use `isLowerCase` instead.
+
+- In `Unicode.Char.General`:
+
+  - `isLetter`: use `isAlphabetic` instead.
+  - `isSpace`: use `isWhiteSpace` instead.
+
+- In `Unicode.Char`: same as hereinabove. These functions will be replaced in a
+  _future_ release with the functions with the same names from
+  `Unicode.Char.Case.Compat` and `Unicode.Char.General.Compat`.
+
+## 0.2.0 (November 2021)
+
+* Update to [Unicode 14.0.0](https://www.unicode.org/versions/Unicode14.0.0/).
+* Add `Unicode.Char.Identifiers` supporting Unicode Identifier and Pattern
+  Syntax.
+
+## 0.1.0.1 (Jul 2021)
+
+* Workaround to avoid incorrect display of dependencies on Hackage by moving
+  build-depends of ucd2haskell executable under a build flag conditional.
+
+## 0.1.0 (Jul 2021)
+
+* Initial release
diff --git a/unicode-data/README.md b/unicode-data/README.md
index 7c2eee01..4e9057a6 100644
--- a/unicode-data/README.md
+++ b/unicode-data/README.md
@@ -4,8 +4,10 @@
 character database. [Performance](#performance) is the primary goal in the
 design of this package.
 
-`unicode-data` is an _all-in-one_ package that re-exports
-all the `unicode-data-*` package familly.
+From version `15.0.0` `unicode-data` is an _all-in-one_ package that re-exports
+all the `unicode-data-*` package familly. You should use
+[`unicode-data-core`](https://hackage.haskell.org/package/unicode-data-core)
+if you only need the core modules.
 
 The Haskell data structures are generated programmatically from the
 [Unicode character database](https://www.unicode.org/ucd/) (UCD) files.
diff --git a/unicode-data/unicode-data.cabal b/unicode-data/unicode-data.cabal
index 398318a8..db8ee813 100644
--- a/unicode-data/unicode-data.cabal
+++ b/unicode-data/unicode-data.cabal
@@ -10,6 +10,11 @@ description:
   The Haskell data structures are generated programmatically from the UCD files.
   The latest Unicode version supported by this library is
   @<https://www.unicode.org/versions/Unicode15.0.0/ 15.0.0>@.
+  .
+  __WARNING:__ from version @15.0.0@, @unicode-data@ is an all-in-one package
+  with heavier dependencies. You should use
+  <https://hackage.haskell.org/package/unicode-data-core unicode-data-core>
+  if you only need core modules.
 homepage:            http://github.com/composewell/unicode-data
 bug-reports:         https://github.com/composewell/unicode-data/issues
 license:             Apache-2.0