diff --git a/contracts/asset-proxy/CHANGELOG.json b/contracts/asset-proxy/CHANGELOG.json
index 3e2d10a3c8..59ab099079 100644
--- a/contracts/asset-proxy/CHANGELOG.json
+++ b/contracts/asset-proxy/CHANGELOG.json
@@ -1,10 +1,14 @@
 [
     {
-        "version": "1.0.10",
+        "version": "2.0.0",
         "changes": [
             {
                 "note": "Set evmVersion to byzantium",
                 "pr": 1678
+            },
+            {
+                "note": "Do not reexport external dependencies",
+                "pr": 1682
             }
         ]
     },
diff --git a/contracts/erc20/CHANGELOG.json b/contracts/erc20/CHANGELOG.json
index cb7ca2d951..7d2d6d8218 100644
--- a/contracts/erc20/CHANGELOG.json
+++ b/contracts/erc20/CHANGELOG.json
@@ -1,10 +1,14 @@
 [
     {
-        "version": "1.0.10",
+        "version": "2.0.0",
         "changes": [
             {
                 "note": "Set evmVersion to byzantium",
                 "pr": 1678
+            },
+            {
+                "note": "Upgrade contracts to Solidity 0.5.5",
+                "pr": 1682
             }
         ]
     },
diff --git a/contracts/erc721/CHANGELOG.json b/contracts/erc721/CHANGELOG.json
index 84aa0a01f8..f7cfc8b6b5 100644
--- a/contracts/erc721/CHANGELOG.json
+++ b/contracts/erc721/CHANGELOG.json
@@ -1,10 +1,14 @@
 [
     {
-        "version": "1.0.10",
+        "version": "2.0.0",
         "changes": [
             {
                 "note": "Set evmVersion to byzantium",
                 "pr": 1678
+            },
+            {
+                "note": "Upgrade contracts to Solidity 0.5.5",
+                "pr": 1682
             }
         ]
     },
diff --git a/contracts/exchange-forwarder/CHANGELOG.json b/contracts/exchange-forwarder/CHANGELOG.json
index 483f32a0f6..50d4375ca1 100644
--- a/contracts/exchange-forwarder/CHANGELOG.json
+++ b/contracts/exchange-forwarder/CHANGELOG.json
@@ -1,10 +1,14 @@
 [
     {
-        "version": "1.0.10",
+        "version": "2.0.0",
         "changes": [
             {
                 "note": "Set evmVersion to byzantium",
                 "pr": 1678
+            },
+            {
+                "note": "Do not reexport external dependencies",
+                "pr": 1682
             }
         ]
     },
diff --git a/contracts/exchange-libs/CHANGELOG.json b/contracts/exchange-libs/CHANGELOG.json
index 96246134f6..23d12e531d 100644
--- a/contracts/exchange-libs/CHANGELOG.json
+++ b/contracts/exchange-libs/CHANGELOG.json
@@ -1,10 +1,14 @@
 [
     {
-        "version": "1.1.4",
+        "version": "2.0.0",
         "changes": [
             {
                 "note": "Set evmVersion to byzantium",
                 "pr": 1678
+            },
+            {
+                "note": "Upgrade contracts to Solidity 0.5.5",
+                "pr": 1682
             }
         ]
     },
diff --git a/contracts/exchange/CHANGELOG.json b/contracts/exchange/CHANGELOG.json
index 9d28b24f44..76bad01b67 100644
--- a/contracts/exchange/CHANGELOG.json
+++ b/contracts/exchange/CHANGELOG.json
@@ -1,10 +1,18 @@
 [
     {
-        "version": "1.0.10",
+        "version": "2.0.0",
         "changes": [
             {
                 "note": "Set evmVersion to byzantium",
                 "pr": 1678
+            },
+            {
+                "note": "Do not reexport external dependencies",
+                "pr": 1682
+            },
+            {
+                "note": "Upgrade contracts to Solidity 0.5.5",
+                "pr": 1682
             }
         ]
     },
diff --git a/contracts/extensions/CHANGELOG.json b/contracts/extensions/CHANGELOG.json
index 229dcd5a25..88f6fc4628 100644
--- a/contracts/extensions/CHANGELOG.json
+++ b/contracts/extensions/CHANGELOG.json
@@ -1,10 +1,18 @@
 [
     {
-        "version": "2.0.9",
+        "version": "3.0.0",
         "changes": [
             {
                 "note": "Set evmVersion to byzantium",
                 "pr": 1678
+            },
+            {
+                "note": "Do not reexport external dependencies",
+                "pr": 1682
+            },
+            {
+                "note": "Upgrade contracts to Solidity 0.5.5",
+                "pr": 1682
             }
         ]
     },
diff --git a/contracts/multisig/CHANGELOG.json b/contracts/multisig/CHANGELOG.json
index f2cecdeab5..de02c953b0 100644
--- a/contracts/multisig/CHANGELOG.json
+++ b/contracts/multisig/CHANGELOG.json
@@ -1,10 +1,14 @@
 [
     {
-        "version": "2.0.9",
+        "version": "3.0.0",
         "changes": [
             {
                 "note": "Set evmVersion to byzantium",
                 "pr": 1678
+            },
+            {
+                "note": "Do not reexport external dependencies",
+                "pr": 1682
             }
         ]
     },
diff --git a/contracts/utils/CHANGELOG.json b/contracts/utils/CHANGELOG.json
index 8b2d28b03e..11322582b7 100644
--- a/contracts/utils/CHANGELOG.json
+++ b/contracts/utils/CHANGELOG.json
@@ -1,6 +1,6 @@
 [
     {
-        "version": "2.0.9",
+        "version": "3.0.0",
         "changes": [
             {
                 "note": "Set evmVersion to byzantium",
@@ -9,6 +9,10 @@
             {
                 "note": "Optimize loops in LibAddressArray",
                 "pr": 1668
+            },
+            {
+                "note": "Upgrade contracts to Solidity 0.5.5",
+                "pr": 1682
             }
         ]
     },
diff --git a/packages/typescript-typings/CHANGELOG.json b/packages/typescript-typings/CHANGELOG.json
index 50cc774d23..1f6372aab5 100644
--- a/packages/typescript-typings/CHANGELOG.json
+++ b/packages/typescript-typings/CHANGELOG.json
@@ -1,4 +1,13 @@
 [
+    {
+        "version": "4.2.0",
+        "changes": [
+            {
+                "note": "Add optional types to optimizer settings",
+                "pr": 1682
+            }
+        ]
+    },
     {
         "version": "4.1.0",
         "changes": [