diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 2d2ffc2..151ceca 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -24,16 +24,12 @@ jobs:
             implementation: python2.7
           - target: construct
             implementation: python3.4
-          - target: construct
-            implementation: python3.11
           - target: construct
             implementation: python3.12
           - target: csharp
             implementation: netcore6.0
           - target: graphviz
             implementation: 8
-          - target: go
-            implementation: 1.19
           - target: go
             implementation: 1.21
           - target: java
@@ -52,8 +48,6 @@ jobs:
             implementation: nodejs10
           - target: javascript
             implementation: nodejs12
-          - target: javascript
-            implementation: nodejs18
           - target: javascript
             implementation: nodejs20
           - target: lua
@@ -72,8 +66,6 @@ jobs:
             implementation: 2.7
           - target: python
             implementation: 3.4
-          - target: python
-            implementation: 3.11
           - target: python
             implementation: 3.12
           - target: ruby
diff --git a/src/construct/python3.11-linux-x86_64/Dockerfile b/src/construct/python3.11-linux-x86_64/Dockerfile
deleted file mode 100644
index 27f53c6..0000000
--- a/src/construct/python3.11-linux-x86_64/Dockerfile
+++ /dev/null
@@ -1,16 +0,0 @@
-FROM python:3.11-alpine
-
-# Copy files common for all images
-COPY 4img/* ./
-
-# Install all dependencies
-RUN ./prepare
-RUN ./prepare-alpine-init && ./prepare-alpine-ruby && ./prepare-alpine-uninit
-
-# Validate that we've got correct version, e.g. something like this:
-#
-# $ python --version
-# Python 3.11.4
-
-RUN ./validate-python '^Python 3\.11\.'
-RUN ./validate-construct '^2\.10\.'
diff --git a/src/construct/python3.11-linux-x86_64/build b/src/construct/python3.11-linux-x86_64/build
deleted file mode 120000
index 552d52a..0000000
--- a/src/construct/python3.11-linux-x86_64/build
+++ /dev/null
@@ -1 +0,0 @@
-../../generic-build
\ No newline at end of file
diff --git a/src/construct/python3.11-linux-x86_64/run-it b/src/construct/python3.11-linux-x86_64/run-it
deleted file mode 120000
index 7461764..0000000
--- a/src/construct/python3.11-linux-x86_64/run-it
+++ /dev/null
@@ -1 +0,0 @@
-../../generic-run-it
\ No newline at end of file
diff --git a/src/go/1.19-linux-x86_64/Dockerfile b/src/go/1.19-linux-x86_64/Dockerfile
deleted file mode 100644
index fcb6240..0000000
--- a/src/go/1.19-linux-x86_64/Dockerfile
+++ /dev/null
@@ -1,27 +0,0 @@
-FROM golang:1.19-alpine
-
-# Copy files common for all images
-COPY 4img/* ./
-
-RUN ./prepare-alpine-init
-
-# Ruby is required for test infrastructure (aggregators, test result converters) to work
-RUN ./prepare-alpine-ruby
-
-# Required to download go-junit-report release in ./prepare-go-deps
-RUN apk add curl
-
-# Required for `go get` to work
-RUN apk add git
-
-RUN ./prepare-alpine-uninit
-
-# Install rest of go-specific dependencies
-RUN ./prepare
-
-# Validate that we've got correct version, e.g. something like this:
-#
-# $ go version
-# go version go1.19.10 linux/amd64
-
-RUN ./validate '^go version go1\.19\.'
diff --git a/src/go/1.19-linux-x86_64/build b/src/go/1.19-linux-x86_64/build
deleted file mode 120000
index 552d52a..0000000
--- a/src/go/1.19-linux-x86_64/build
+++ /dev/null
@@ -1 +0,0 @@
-../../generic-build
\ No newline at end of file
diff --git a/src/go/1.19-linux-x86_64/run-it b/src/go/1.19-linux-x86_64/run-it
deleted file mode 120000
index 7461764..0000000
--- a/src/go/1.19-linux-x86_64/run-it
+++ /dev/null
@@ -1 +0,0 @@
-../../generic-run-it
\ No newline at end of file
diff --git a/src/javascript/nodejs18-linux-x86_64/Dockerfile b/src/javascript/nodejs18-linux-x86_64/Dockerfile
deleted file mode 100644
index e0b8732..0000000
--- a/src/javascript/nodejs18-linux-x86_64/Dockerfile
+++ /dev/null
@@ -1,15 +0,0 @@
-FROM node:18-alpine
-
-# Copy files common for all images
-COPY 4img/* ./
-
-# Install all dependencies
-RUN ./prepare
-RUN ./prepare-alpine-init && ./prepare-alpine-ruby && ./prepare-alpine-uninit
-
-# Validate that we've got correct version, e.g. something like this:
-#
-# $ node --version
-# v18.16.1
-
-RUN ./validate '^v18\.'
diff --git a/src/javascript/nodejs18-linux-x86_64/build b/src/javascript/nodejs18-linux-x86_64/build
deleted file mode 120000
index 552d52a..0000000
--- a/src/javascript/nodejs18-linux-x86_64/build
+++ /dev/null
@@ -1 +0,0 @@
-../../generic-build
\ No newline at end of file
diff --git a/src/javascript/nodejs18-linux-x86_64/run-it b/src/javascript/nodejs18-linux-x86_64/run-it
deleted file mode 120000
index 7461764..0000000
--- a/src/javascript/nodejs18-linux-x86_64/run-it
+++ /dev/null
@@ -1 +0,0 @@
-../../generic-run-it
\ No newline at end of file
diff --git a/src/python/3.11-linux-x86_64/Dockerfile b/src/python/3.11-linux-x86_64/Dockerfile
deleted file mode 100644
index f5d1cf6..0000000
--- a/src/python/3.11-linux-x86_64/Dockerfile
+++ /dev/null
@@ -1,15 +0,0 @@
-FROM python:3.11-alpine
-
-# Copy files common for all images
-COPY 4img/* ./
-
-# Install all dependencies
-RUN ./prepare
-RUN ./prepare-alpine-init && ./prepare-alpine-ruby && ./prepare-alpine-uninit
-
-# Validate that we've got correct version, e.g. something like this:
-#
-# $ python --version
-# Python 3.11.4
-
-RUN ./validate '^Python 3\.11\.'
diff --git a/src/python/3.11-linux-x86_64/build b/src/python/3.11-linux-x86_64/build
deleted file mode 120000
index 552d52a..0000000
--- a/src/python/3.11-linux-x86_64/build
+++ /dev/null
@@ -1 +0,0 @@
-../../generic-build
\ No newline at end of file
diff --git a/src/python/3.11-linux-x86_64/run-it b/src/python/3.11-linux-x86_64/run-it
deleted file mode 120000
index 7461764..0000000
--- a/src/python/3.11-linux-x86_64/run-it
+++ /dev/null
@@ -1 +0,0 @@
-../../generic-run-it
\ No newline at end of file