diff --git a/devops/cloud/aws/docs/course/courses.txt b/devops/cloud/aws/docs/course/courses.txt
index c799805fa..6cdc71f8f 100644
--- a/devops/cloud/aws/docs/course/courses.txt
+++ b/devops/cloud/aws/docs/course/courses.txt
@@ -1,5 +1,9 @@
 https://www.coursera.org/learn/aws-cloud-technical-essentials
 
+2023
+RahulWagh - AWS Cours of 15 parts
+    https://www.youtube.com/playlist?list=PL7iMyoQPMtAN4xl6oWzafqJebfay7K8KP
+    ! simple, short
 2022
 AWS Certified DevOps Engineer – Professional
     https://dlcourse.org/aws-certified-devops-engineer-professional/
diff --git a/devops/k8s/features/probes/presentations.txt b/devops/k8s/features/probes/presentations.txt
new file mode 100644
index 000000000..ddb659617
--- /dev/null
+++ b/devops/k8s/features/probes/presentations.txt
@@ -0,0 +1,3 @@
+2021
+RahulWagh - Kubernetes Probes- livenessProbe, readinessProbe, startupProbe |How to use kubernetes probes-part 14 0:00 of 18:00
+    https://www.youtube.com/watch?v=aTlQBofihJQ
diff --git a/os/linux/internals/kernel/docs/whatsnew.txt b/os/linux/internals/kernel/docs/whatsnew.txt
index f4201f553..584932b62 100644
--- a/os/linux/internals/kernel/docs/whatsnew.txt
+++ b/os/linux/internals/kernel/docs/whatsnew.txt
@@ -1,4 +1,5 @@
 6.x
+https://9to5linux.com/linus-torvalds-announces-first-linux-kernel-6-7-release-candidate
 https://www.opennet.ru/opennews/art.shtml?num=60016
 https://lkml.org/lkml/2022/10/2/255
     https://www.opennet.ru/opennews/art.shtml?num=57861
diff --git a/os/linux/internals/mem/cache-cleanup.txt b/os/linux/internals/mem/cache-cleanup.txt
new file mode 100644
index 000000000..009955439
--- /dev/null
+++ b/os/linux/internals/mem/cache-cleanup.txt
@@ -0,0 +1,2 @@
+2023
+https://www.fosslinux.com/134079/clearing-linux-systems-ram-cache-and-swap-space.htm
diff --git a/os/unix/filesystem/bcachefs.txt b/os/unix/filesystem/bcachefs.txt
index b30a3ff93..f476f2c6f 100644
--- a/os/unix/filesystem/bcachefs.txt
+++ b/os/unix/filesystem/bcachefs.txt
@@ -1,4 +1,5 @@
 https://bcachefs.org/
+    ! linux 6.7
 
 2023
 https://www.linux.org.ru/news/kernel/17398004