Changelog for program v0.16.0 and idl update (#585)

CHANGELOG.md

@@ -4,7 +4,27 @@ Update this for each program release and mainnet deployment.
 
 ## not on mainnet
 
-- New event: PerpTakerTradeLog immdediatly logs your last trade execution (#579)
+### v0.16.0, 2023-5-
+
+- New event: PerpTakerTradeLog immediately logs your trade execution (#579, #584)
+
+  Previously you had to look at the logs from FillEvent processing to determine
+  how much was taken and what the fees were. The new PerpTakerTradeLog event
+  is emitted during PerpPlaceOrder and simplifies that.
+
+- Perp self-trade options (#533)
+
+  There are new PerpPlaceOrderV2 and PerpPlaceOrderPeggedV2 instructions that take
+  an argument that controls self-trade behavior, similar to OpenBook.
+
+  The old instructions still exist with nearly unchanged behavior: They default
+  to DecrementTake, which means being allowed to match against your own orders.
+  But now you don't pay fees if you do so.
+
+- Update anchor to v0.27.0 (#582)
+
+  Mango used to depend on a fork of anchor. Now all patches are upstreamed and
+  we have upgraded to the unmodified upstream version of v0.27.0.
 
 ## mainnet
 

mango_v4.json

@@ -9442,6 +9442,11 @@
           "type": "i64",
           "index": false
         },
+        {
+          "name": "totalBaseLotsDecremented",
+          "type": "i64",
+          "index": false
+        },
         {
           "name": "totalQuoteLotsTaken",
           "type": "i64",

ts/client/src/mango_v4.ts

@@ -9442,6 +9442,11 @@ export type MangoV4 = {
           "type": "i64",
           "index": false
         },
+        {
+          "name": "totalBaseLotsDecremented",
+          "type": "i64",
+          "index": false
+        },
         {
           "name": "totalQuoteLotsTaken",
           "type": "i64",
@@ -19253,6 +19258,11 @@ export const IDL: MangoV4 = {
           "type": "i64",
           "index": false
         },
+        {
+          "name": "totalBaseLotsDecremented",
+          "type": "i64",
+          "index": false
+        },
         {
           "name": "totalQuoteLotsTaken",
           "type": "i64",