diff --git a/CHANGELOG.md b/CHANGELOG.md
index 500ac95..7033259 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,21 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [2.3.1] - 2026-06-29
+
+### Fixed
+
+- `Clear-SPSLog` no longer filters on an undefined `$logFileName` variable (which
+  resolved to `*`, accidentally working but never targeting `.log` files
+  specifically). It now takes a `-Filter` parameter (default `*.log`) and honors
+  `-Retention 0` to disable pruning (#42).
+
+### Changed
+
+- Log retention is no longer hardcoded to 180 days: new config setting
+  `LogRetentionDays` (default 180, 0 disables pruning), mirroring
+  `JsonHistoryRetentionDays` (#42).
+
 ## [2.3.0] - 2026-06-29
 
 ### Added
diff --git a/RELEASE-NOTES.md b/RELEASE-NOTES.md
index 39a4cce..d3ff206 100644
--- a/RELEASE-NOTES.md
+++ b/RELEASE-NOTES.md
@@ -1,5 +1,19 @@
 # SPSWeather - Release Notes
 
+## [2.3.1] - 2026-06-29
+
+### Fixed
+
+- `Clear-SPSLog` now actually targets `.log` files (it was filtering on an
+  undefined variable). Retention 0 disables pruning.
+
+### Changed
+
+- New config setting `LogRetentionDays` (default 180, 0 disables) replaces the
+  hardcoded 180-day retention, mirroring `JsonHistoryRetentionDays`.
+
+A full list of changes can be found in the [change log](CHANGELOG.md).
+
 ## [2.3.0] - 2026-06-29
 
 ### Added
diff --git a/src/Config/CONTOSO-PROD.example.psd1 b/src/Config/CONTOSO-PROD.example.psd1
index df5f76e..4471a98 100644
--- a/src/Config/CONTOSO-PROD.example.psd1
+++ b/src/Config/CONTOSO-PROD.example.psd1
@@ -52,6 +52,10 @@
     # pruning. Default: 30.
     JsonHistoryRetentionDays    = 30
 
+    # LogRetentionDays: how many days of *.log transcript files are kept under
+    # Logs\ by Clear-SPSLog. 0 disables pruning. Default: 180.
+    LogRetentionDays            = 180
+
     # Farms : one entry per trusted farm to check. Server is the short name; the
     # Domain above is appended to build the FQDN targeted for remoting. SqlServers
     # is OPTIONAL: the SQL client alias(es) (cliconfg) or server name(s) this farm
diff --git a/src/Modules/SPSWeather.Common/Public/Clear-SPSLog.ps1 b/src/Modules/SPSWeather.Common/Public/Clear-SPSLog.ps1
index a77e687..21f02df 100644
--- a/src/Modules/SPSWeather.Common/Public/Clear-SPSLog.ps1
+++ b/src/Modules/SPSWeather.Common/Public/Clear-SPSLog.ps1
@@ -6,35 +6,34 @@
 
         [Parameter()]
         [System.UInt32]
-        $Retention = 180
+        $Retention = 180,
+
+        [Parameter()]
+        [System.String]
+        $Filter = '*.log'
     )
 
+    if ($Retention -eq 0) {
+        Write-Verbose -Message "Clear-SPSLog: retention is 0, pruning disabled."
+        return
+    }
+
     if (Test-Path $path) {
-        # Get the current date
         $Now = Get-Date
-        # Define LastWriteTime parameter based on $days
         $LastWrite = $Now.AddDays(-$Retention)
-        # Get files based on lastwrite filter and specified folder
-        $files = Get-Childitem -Path $path -Filter "$($logFileName)*" | Where-Object -FilterScript {
-            $_.LastWriteTime -le "$LastWrite"
-        }
+        $files = Get-Childitem -Path $path -Filter $Filter -File -ErrorAction SilentlyContinue |
+            Where-Object -FilterScript { $_.LastWriteTime -le $LastWrite }
         if ($files) {
             Write-Output '--------------------------------------------------------------'
-            Write-Output "Cleaning log files in $path ..."
+            Write-Output "Cleaning files matching '$Filter' in $path (older than $Retention days) ..."
             foreach ($file in $files) {
-                if ($null -ne $file) {
-                    Write-Output "Deleting file $file ..."
-                    Remove-Item $file.FullName | out-null
-                }
-                else {
-                    Write-Output 'No more log files to delete'
-                    Write-Output '--------------------------------------------------------------'
-                }
+                Write-Output "Deleting file $($file.FullName) ..."
+                Remove-Item -Path $file.FullName -Force -ErrorAction SilentlyContinue
             }
         }
         else {
             Write-Output '--------------------------------------------------------------'
-            Write-Output "$path - No needs to delete log files"
+            Write-Output "$path - No needs to delete files matching '$Filter'"
             Write-Output '--------------------------------------------------------------'
         }
     }
diff --git a/src/Modules/SPSWeather.Common/SPSWeather.Common.psd1 b/src/Modules/SPSWeather.Common/SPSWeather.Common.psd1
index cbbe5bc..1e832a9 100644
--- a/src/Modules/SPSWeather.Common/SPSWeather.Common.psd1
+++ b/src/Modules/SPSWeather.Common/SPSWeather.Common.psd1
@@ -1,6 +1,6 @@
 @{
     RootModule        = 'SPSWeather.Common.psm1'
-    ModuleVersion     = '2.3.0'
+    ModuleVersion     = '2.3.1'
     GUID              = 'c39bd612-8520-4e65-9037-80060894d654'
     Author            = 'Jean-Cyril DROUHIN'
     CompanyName       = 'luigilink'
diff --git a/src/SPSWeather.ps1 b/src/SPSWeather.ps1
index 2089b65..ad9d37a 100644
--- a/src/SPSWeather.ps1
+++ b/src/SPSWeather.ps1
@@ -216,6 +216,7 @@ else {
         $sqlDiskThreshold = if ($null -ne $envCfg.SQLDiskFreeThresholdPercent) { [int]$envCfg.SQLDiskFreeThresholdPercent } else { 15 }
         $sqlBackupMaxAge = if ($null -ne $envCfg.SQLBackupMaxAgeDays) { [int]$envCfg.SQLBackupMaxAgeDays } else { 3 }
         $jsonHistoryRetentionDays = if ($null -ne $envCfg.JsonHistoryRetentionDays) { [int]$envCfg.JsonHistoryRetentionDays } else { 30 }
+        $logRetentionDays = if ($null -ne $envCfg.LogRetentionDays) { [int]$envCfg.LogRetentionDays } else { 180 }
         $pathHistoryFolder = Join-Path -Path $pathResultsFolder -ChildPath 'history'
         Add-SPSWeatherEvent -Message "SPSWeather $spsWeatherVersion started for $Application/$Environment on $env:COMPUTERNAME." -EntryType 'Information' -EventID 1000
         foreach ($spFarm in $spFarms) {
@@ -473,7 +474,7 @@ else {
         }
 
         # Clean the folder of log files
-        Clear-SPSLog -path $pathLogsFolder -Retention 180
+        Clear-SPSLog -path $pathLogsFolder -Retention $logRetentionDays
 
         # Send Email
         if ($EnableSmtp) {
diff --git a/tests/SPSWeather.Common.Tests.ps1 b/tests/SPSWeather.Common.Tests.ps1
index e75c8a0..e9850da 100644
--- a/tests/SPSWeather.Common.Tests.ps1
+++ b/tests/SPSWeather.Common.Tests.ps1
@@ -36,7 +36,7 @@ Describe 'SPSWeather.Common module' {
     }
 
     It 'manifest version is 2.0.0 or higher' {
-        (Test-ModuleManifest -Path $modulePath).Version | Should -BeGreaterOrEqual ([version]'2.3.0')
+        (Test-ModuleManifest -Path $modulePath).Version | Should -BeGreaterOrEqual ([version]'2.3.1')
     }
 
     It 'exports exactly the expected public functions' {