diff --git a/CHANGELOG.md b/CHANGELOG.md
index 250927b..967e0ca 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,9 +1,12 @@
-## next
+## 4.0.0-rc.1
 
 - Allowed to pass a string value as an options, it's equivalent to `{ basedir: <string> }`
 - Fixed `scanFs()` definition to allow omitting of `options` argument
-- Added `encoding` option for `Rule` to specify an encoding for a file content
+- Added `resolveSymlinks` option to enable symlink resolving, a symlink resolving is disabled by default
 - Added `posixPath` field to `File` and `Symlink` interfaces
+- Added `encoding` option for `Rule` to specify an encoding for a file content
+- Changed rule's `test` option to apply to POSIX paths disregarding of operating system used
+- Changed `include` and `exclude` options to take POSIX paths disregarding of operating system used which are supposed to be relative to `basedir`
 - Changed a returning value of `scanFs()`:
 
   - Added `basedir` field
@@ -20,7 +23,6 @@
   console.log(files, symlinks);
   ```
 
-- Added `resolveSymlinks` option to enable symlink resolving, a symlink resolving is disabled by default
 - Renamed `NormRule` type into `MatchRule`
 - Added `ScanResult` type to define returning type of `scanFs()`
 - Removed output errors to console by default
diff --git a/README.md b/README.md
index 17b8087..4bfe37b 100644
--- a/README.md
+++ b/README.md
@@ -62,21 +62,21 @@ A value of `options` parameter is a string (which equivalent to `{ basedir: <str
   Type: `string`  
   Default: `process.cwd()`
 
-  Base directory to scan. All the paths in a result are relative to `basedir`.
+  Base directory to scan and resolve paths to. All the paths in a result are relative to `basedir`.
 
 - **include**
 
   Type: `string`, `string[]` or `null`  
   Default: `null`
 
-  A list of directories to scan, relative to `basedir`. When used, a scanned file path must start with one of the directories from the list. In case when the same path is used in `include` and `exclude`, `include` has priority over `exclude` (i.e. `include` wins).
+  A list of directories to scan relative to `basedir`. When used, a scanned file path must start with one of the directories from the list. `include` has priority over `exclude` option, i.e. `include` wins when the same path is used in `include` and `exclude` options. Paths should be specified in POSIX disregarding of used operating system.
 
 - **exclude**
 
   Type: `string`, `string[]` or `null`  
   Default: `null`
 
-  A list of directories to avoid scan, relative to `basedir`. When used, a scanned file path must not start with any of the directories from the list.
+  A list of directories to avoid scan relative to `basedir`. When used, a file relative path must not start with any of the directories from the list. Paths should be specified in POSIX disregarding of used operating system.
 
 - **rules**
 
@@ -106,21 +106,21 @@ A **rule** is an object with following fields (all are optional):
   Type: `RegExp`, `RegExp[]` or `null`  
   Default: `null`
 
-  A list of RegExps that applies to relative to `options.basedir` path of file.
+  A list of RegExps that applies to a POSIX path relative to `options.basedir`.
 
 - **include**
 
   Type: `string`, `string[]` or `null`  
   Default: `null`
 
-  The same as for `options.include` but applies on a rule level. When used it also populates `options.include`.
+  The same as for `options.include` but applies on a rule's level. When used it also populates `options.include`.
 
 - **exclude**
 
   Type: `string`, `string[]` or `null`  
   Default: `undefnullined`
 
-  The same as for `options.exclude` but applies on a rule level.
+  The same as for `options.exclude` but applies on a rule's level.
 
 - **extract**
 
diff --git a/package-lock.json b/package-lock.json
index 5ad7c78..c98efb0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
      "name": "@discoveryjs/scan-fs",
-     "version": "3.0.0",
+     "version": "4.0.0-rc.1",
      "lockfileVersion": 2,
      "requires": true,
      "packages": {
           "": {
                "name": "@discoveryjs/scan-fs",
-               "version": "3.0.0",
+               "version": "4.0.0-rc.1",
                "license": "MIT",
                "devDependencies": {
                     "@types/mocha": "^9.1.1",
diff --git a/package.json b/package.json
index a703438..b631401 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
      "name": "@discoveryjs/scan-fs",
-     "version": "3.0.0",
+     "version": "4.0.0-rc.1",
      "description": "An utility for seeking files by file system scanning and optionally populating file info with processing their content",
      "author": "Roman Dvornov <rdvornov@gmail.com>",
      "license": "MIT",