diff --git a/hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/6_4_0/version.yaml b/hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/6_4_0/version.yaml
index 65e91d915a7..4be86bbbac8 100644
--- a/hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/6_4_0/version.yaml
+++ b/hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/6_4_0/version.yaml
@@ -1,3 +1,3 @@
 ---
 release-date: "2022-02-18"
-codename: "TBD"
+codename: "Vishwa"
diff --git a/hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/6_4_3/upgrade.md b/hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/6_4_3/upgrade.md
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/6_4_3/version.yaml b/hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/6_4_3/version.yaml
new file mode 100644
index 00000000000..37c96634729
--- /dev/null
+++ b/hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/6_4_3/version.yaml
@@ -0,0 +1,3 @@
+---
+release-date: "2023-03-15"
+codename: "Vishwa"
diff --git a/hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/6_6_0/version.yaml b/hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/6_6_0/version.yaml
index 2de22c443a8..864fb0d514c 100644
--- a/hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/6_6_0/version.yaml
+++ b/hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/6_6_0/version.yaml
@@ -1,3 +1,3 @@
 ---
 release-date: "2023-05-18"
-codename: "TBD"
+codename: "Xenon"
diff --git a/hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/6_8_0/version.yaml b/hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/6_8_0/version.yaml
index 390061b1ec6..f08e2d4312f 100644
--- a/hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/6_8_0/version.yaml
+++ b/hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/6_8_0/version.yaml
@@ -1,3 +1,3 @@
 ---
 release-date: "2023-08-18"
-codename: "TBD"
+codename: "Yucatán"