2019-12-05 | #12095200

Hard Fork Date | Block Number

• Network: Sokol

• Date: 2019-12-05

• Block number: 12095200

Description: Istanbul Upgrade

• eip1283ReenableTransition

• eip1344Transition

• eip1706Transition

• eip1884Transition

• eip2028Transition

• additional bootnode added

Perform Updates

1. You must update spec.json and Parity node to version 2.6.5 as the spec format was changed. This requires a slightly different update process: Use this guide to upgrade.

2. Organize the HF on block 12095200

Verify

Once your update is complete, verify the HF block number:

grep -n -A2 12095200 spec.json

You should see:

46:    "eip1283ReenableTransition": 12095200,
47:    "eip1344Transition": 12095200,
48:    "eip1706Transition": 12095200,
49:    "eip1884Transition": 12095200,
50:    "eip2028Transition": 12095200
51-  },
52-  "genesis": {
--
98:          "12095200": {
99-            "info": "Istanbul HF",
100-            "price": {
--
120:          "12095200": {
121-            "info": "Istanbul HF",
122-            "price": {
--
143:          "12095200": {
144-            "info": "Istanbul HF",
145-            "price": {
--
159:          "12095200": {
160-            "info": "Istanbul HF",
161-            "price": {