ZK to MPT

.gitignore

@@ -31,4 +31,7 @@ contracts/mainnet.json
 .env
 
 # logs
-*.log
+*.log
+
+# mpt-switch-test (local testing only)
+ops/mpt-switch-test

Makefile

@@ -1,8 +1,9 @@
 ################## update dependencies ####################
-ETHEREUM_SUBMODULE_COMMIT_OR_TAG := morph-v2.1.0
-ETHEREUM_TARGET_VERSION := v1.10.14-0.20251219060125-03910bc750a2
+ETHEREUM_SUBMODULE_COMMIT_OR_TAG := morph-v2.1.2
+ETHEREUM_TARGET_VERSION := morph-v2.1.2
 TENDERMINT_TARGET_VERSION := v0.3.3
 
+
 ETHEREUM_MODULE_NAME := github.com/morph-l2/go-ethereum
 TENDERMINT_MODULE_NAME := github.com/morph-l2/tendermint
 

bindings/go.mod

@@ -4,7 +4,7 @@ go 1.24.0
 
 replace github.com/tendermint/tendermint => github.com/morph-l2/tendermint v0.3.3
 
-require github.com/morph-l2/go-ethereum v1.10.14-0.20251219060125-03910bc750a2
+require github.com/morph-l2/go-ethereum v1.10.14-0.20260211074551-4f0f6e6bd141
 
 require (
 	github.com/VictoriaMetrics/fastcache v1.12.2 // indirect
@@ -27,11 +27,9 @@ require (
 	github.com/hashicorp/golang-lru v1.0.2 // indirect
 	github.com/holiman/uint256 v1.2.4 // indirect
 	github.com/iden3/go-iden3-crypto v0.0.16 // indirect
-	github.com/mattn/go-runewidth v0.0.15 // indirect
 	github.com/mmcloughlin/addchain v0.4.0 // indirect
 	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
 	github.com/prometheus/tsdb v0.10.0 // indirect
-	github.com/rivo/uniseg v0.4.3 // indirect
 	github.com/rjeczalik/notify v0.9.3 // indirect
 	github.com/scroll-tech/zktrie v0.8.4 // indirect
 	github.com/shirou/gopsutil v3.21.11+incompatible // indirect

bindings/go.sum

@@ -103,16 +103,16 @@ github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxv
 github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc=
 github.com/leanovate/gopter v0.2.11 h1:vRjThO1EKPb/1NsDXuDrzldR28RLkBflWYcU9CvzWu4=
 github.com/leanovate/gopter v0.2.11/go.mod h1:aK3tzZP/C+p1m3SPRE4SYZFGP7jjkuSI4f7Xvpt0S9c=
-github.com/mattn/go-runewidth v0.0.15 h1:UNAjwbU9l54TA3KzvqLGxwWjHmMgBUVhBiTjelZgg3U=
-github.com/mattn/go-runewidth v0.0.15/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
+github.com/mattn/go-runewidth v0.0.16 h1:E5ScNMtiwvlvB5paMFdw9p4kSQzbXFikJ5SQO6TULQc=
+github.com/mattn/go-runewidth v0.0.16/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
 github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
 github.com/mmcloughlin/addchain v0.4.0 h1:SobOdjm2xLj1KkXN5/n0xTIWyZA2+s99UCY1iPfkHRY=
 github.com/mmcloughlin/addchain v0.4.0/go.mod h1:A86O+tHqZLMNO4w6ZZ4FlVQEadcoqkyU72HC5wJ4RlU=
 github.com/mmcloughlin/profile v0.1.1/go.mod h1:IhHD7q1ooxgwTgjxQYkACGA77oFTDdFVejUS1/tS/qU=
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
-github.com/morph-l2/go-ethereum v1.10.14-0.20251219060125-03910bc750a2 h1:FUv9gtnvF+1AVrkoNGYbVOesi7E+STjdfD2mcqVaEY0=
-github.com/morph-l2/go-ethereum v1.10.14-0.20251219060125-03910bc750a2/go.mod h1:tiFPeidxjoCmLj18ne9H3KQdIGTCvRC30qlef06Fd9M=
+github.com/morph-l2/go-ethereum v1.10.14-0.20260211074551-4f0f6e6bd141 h1:A8eygErKU6WKMipGWIemzwLeYkIGLd9yb/Ry3x+J9PQ=
+github.com/morph-l2/go-ethereum v1.10.14-0.20260211074551-4f0f6e6bd141/go.mod h1:nkVzHjQWCOjvukQW8ittlwX+Xz9gmVHrP7mUi7zoHTs=
 github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
 github.com/nxadm/tail v1.4.4/go.mod h1:kenIhsEOeOJmVchQTgglprH7qJGnHDVpk1VPCcaMI8A=
 github.com/nxadm/tail v1.4.8/go.mod h1:+ncqLTQzXmGhMZNUePPaPqPvBxHAIsmXswZKocGu+AU=
@@ -143,9 +143,8 @@ github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d/go.mod h1:c3At6R
 github.com/prometheus/procfs v0.0.2/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
 github.com/prometheus/tsdb v0.10.0 h1:If5rVCMTp6W2SiRAQFlbpJNgVlgMEd+U2GZckwK38ic=
 github.com/prometheus/tsdb v0.10.0/go.mod h1:oi49uRhEe9dPUTlS3JRZOwJuVi6tmh10QSgwXEyGCt4=
-github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
-github.com/rivo/uniseg v0.4.3 h1:utMvzDsuh3suAEnhH0RdHmoPbU648o6CvXxTx4SBMOw=
-github.com/rivo/uniseg v0.4.3/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
+github.com/rivo/uniseg v0.4.7 h1:WUdvkW8uEhrYfLC4ZzdpI2ztxP1I582+49Oc5Mq64VQ=
+github.com/rivo/uniseg v0.4.7/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
 github.com/rjeczalik/notify v0.9.3 h1:6rJAzHTGKXGj76sbRgDiDcYj/HniypXmSJo1SWakZeY=
 github.com/rjeczalik/notify v0.9.3/go.mod h1:gF3zSOrafR9DQEWSE8TjfI9NkooDxbyT4UgRGKZA0lc=
 github.com/scroll-tech/zktrie v0.8.4 h1:UagmnZ4Z3ITCk+aUq9NQZJNAwnWl4gSxsLb2Nl7IgRE=

contracts/go.mod

@@ -6,7 +6,7 @@ replace github.com/tendermint/tendermint => github.com/morph-l2/tendermint v0.3.
 
 require (
 	github.com/iden3/go-iden3-crypto v0.0.16
-	github.com/morph-l2/go-ethereum v1.10.14-0.20251219060125-03910bc750a2
+	github.com/morph-l2/go-ethereum v1.10.14-0.20260211074551-4f0f6e6bd141
 	github.com/stretchr/testify v1.10.0
 )
 
@@ -42,15 +42,15 @@ require (
 	github.com/jackpal/go-nat-pmp v1.0.2 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
-	github.com/mattn/go-runewidth v0.0.15 // indirect
+	github.com/mattn/go-runewidth v0.0.16 // indirect
 	github.com/mitchellh/mapstructure v1.5.0 // indirect
 	github.com/mitchellh/pointerstructure v1.2.1 // indirect
 	github.com/mmcloughlin/addchain v0.4.0 // indirect
 	github.com/olekukonko/tablewriter v0.0.5 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
 	github.com/prometheus/tsdb v0.10.0 // indirect
-	github.com/rivo/uniseg v0.4.3 // indirect
+	github.com/rivo/uniseg v0.4.7 // indirect
 	github.com/rjeczalik/notify v0.9.3 // indirect
 	github.com/rs/cors v1.11.0 // indirect
 	github.com/scroll-tech/zktrie v0.8.4 // indirect

contracts/go.sum

@@ -125,8 +125,8 @@ github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/
 github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
 github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
 github.com/mattn/go-runewidth v0.0.9/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
-github.com/mattn/go-runewidth v0.0.15 h1:UNAjwbU9l54TA3KzvqLGxwWjHmMgBUVhBiTjelZgg3U=
-github.com/mattn/go-runewidth v0.0.15/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
+github.com/mattn/go-runewidth v0.0.16 h1:E5ScNMtiwvlvB5paMFdw9p4kSQzbXFikJ5SQO6TULQc=
+github.com/mattn/go-runewidth v0.0.16/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
 github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
 github.com/mitchellh/mapstructure v1.4.1/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RRV2QTWOzhPopBRo=
 github.com/mitchellh/mapstructure v1.5.0 h1:jeMsZIYE/09sWLaz43PL7Gy6RuMjD2eJVyuac5Z2hdY=
@@ -138,8 +138,8 @@ github.com/mmcloughlin/addchain v0.4.0/go.mod h1:A86O+tHqZLMNO4w6ZZ4FlVQEadcoqky
 github.com/mmcloughlin/profile v0.1.1/go.mod h1:IhHD7q1ooxgwTgjxQYkACGA77oFTDdFVejUS1/tS/qU=
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
-github.com/morph-l2/go-ethereum v1.10.14-0.20251219060125-03910bc750a2 h1:FUv9gtnvF+1AVrkoNGYbVOesi7E+STjdfD2mcqVaEY0=
-github.com/morph-l2/go-ethereum v1.10.14-0.20251219060125-03910bc750a2/go.mod h1:tiFPeidxjoCmLj18ne9H3KQdIGTCvRC30qlef06Fd9M=
+github.com/morph-l2/go-ethereum v1.10.14-0.20260211074551-4f0f6e6bd141 h1:A8eygErKU6WKMipGWIemzwLeYkIGLd9yb/Ry3x+J9PQ=
+github.com/morph-l2/go-ethereum v1.10.14-0.20260211074551-4f0f6e6bd141/go.mod h1:nkVzHjQWCOjvukQW8ittlwX+Xz9gmVHrP7mUi7zoHTs=
 github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
 github.com/nxadm/tail v1.4.4/go.mod h1:kenIhsEOeOJmVchQTgglprH7qJGnHDVpk1VPCcaMI8A=
 github.com/nxadm/tail v1.4.8 h1:nPr65rt6Y5JFSKQO7qToXr7pePgD6Gwiw05lkbyAQTE=
@@ -174,8 +174,8 @@ github.com/prometheus/procfs v0.0.2/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsT
 github.com/prometheus/tsdb v0.10.0 h1:If5rVCMTp6W2SiRAQFlbpJNgVlgMEd+U2GZckwK38ic=
 github.com/prometheus/tsdb v0.10.0/go.mod h1:oi49uRhEe9dPUTlS3JRZOwJuVi6tmh10QSgwXEyGCt4=
 github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
-github.com/rivo/uniseg v0.4.3 h1:utMvzDsuh3suAEnhH0RdHmoPbU648o6CvXxTx4SBMOw=
-github.com/rivo/uniseg v0.4.3/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
+github.com/rivo/uniseg v0.4.7 h1:WUdvkW8uEhrYfLC4ZzdpI2ztxP1I582+49Oc5Mq64VQ=
+github.com/rivo/uniseg v0.4.7/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
 github.com/rjeczalik/notify v0.9.3 h1:6rJAzHTGKXGj76sbRgDiDcYj/HniypXmSJo1SWakZeY=
 github.com/rjeczalik/notify v0.9.3/go.mod h1:gF3zSOrafR9DQEWSE8TjfI9NkooDxbyT4UgRGKZA0lc=
 github.com/rogpeppe/go-internal v1.12.0 h1:exVL4IDcn6na9z1rAb56Vxr+CgyK3nn3O+epU5NdKM8=

go.work.sum

@@ -442,6 +442,8 @@ github.com/charithe/durationcheck v0.0.9 h1:mPP4ucLrf/rKZiIG/a9IPXHGlh8p4CzgpyTy
 github.com/charithe/durationcheck v0.0.9/go.mod h1:SSbRIBVfMjCi/kEB6K65XEA83D6prSM8ap1UCpNKtgg=
 github.com/chavacava/garif v0.0.0-20220630083739-93517212f375 h1:E7LT642ysztPWE0dfz43cWOvMiF42DyTRC+eZIaO4yI=
 github.com/chavacava/garif v0.0.0-20220630083739-93517212f375/go.mod h1:4m1Rv7xfuwWPNKXlThldNuJvutYM6J95wNuuVmn55To=
+github.com/chengxilo/virtualterm v1.0.4 h1:Z6IpERbRVlfB8WkOmtbHiDbBANU7cimRIof7mk9/PwM=
+github.com/chengxilo/virtualterm v1.0.4/go.mod h1:DyxxBZz/x1iqJjFxTFcr6/x+jSpqN0iwWCOK1q10rlY=
 github.com/chzyer/logex v1.1.10 h1:Swpa1K6QvQznwJRcfTfQJmTE72DqScAa40E+fbHEXEE=
 github.com/chzyer/logex v1.2.0/go.mod h1:9+9sk7u7pGNWYMkh0hdiL++6OeibzJccyQU4p4MedaY=
 github.com/chzyer/logex v1.2.1 h1:XHDu3E6q+gdHgsdTPH6ImJMIp436vR6MPtH8gP05QzM=
@@ -873,6 +875,8 @@ github.com/jung-kurt/gofpdf v1.0.3-0.20190309125859-24315acbbda5 h1:PJr+ZMXIecYc
 github.com/jung-kurt/gofpdf v1.0.3-0.20190309125859-24315acbbda5/go.mod h1:7Id9E/uU8ce6rXgefFLlgrJj/GYY22cpxn+r32jIOes=
 github.com/jwilder/encoding v0.0.0-20170811194829-b4e1701a28ef h1:2jNeR4YUziVtswNP9sEFAI913cVrzH85T+8Q6LpYbT0=
 github.com/jwilder/encoding v0.0.0-20170811194829-b4e1701a28ef/go.mod h1:Ct9fl0F6iIOGgxJ5npU/IUOhOhqlVrGjyIZc8/MagT0=
+github.com/k0kubun/go-ansi v0.0.0-20180517002512-3bf9e2903213 h1:qGQQKEcAR99REcMpsXCp3lJ03zYT1PkRd3kQGPn9GVg=
+github.com/k0kubun/go-ansi v0.0.0-20180517002512-3bf9e2903213/go.mod h1:vNUNkEQ1e29fT/6vq2aBdFsgNPmy8qMdSay1npru+Sw=
 github.com/karalabe/usb v0.0.2 h1:M6QQBNxF+CQ8OFvxrT90BA0qBOXymndZnk5q235mFc4=
 github.com/karalabe/usb v0.0.2/go.mod h1:Od972xHfMJowv7NGVDiWVxk2zxnWgjLlJzE+F4F7AGU=
 github.com/kisielk/errcheck v1.2.0/go.mod h1:/BMXB+zMLi60iA8Vv6Ksmxu/1UDYcXs4uQLJ+jE2L00=
@@ -981,6 +985,8 @@ github.com/minio/highwayhash v1.0.1/go.mod h1:BQskDq+xkJ12lmlUUi7U0M5Swg3EWR+dLT
 github.com/mitchellh/cli v1.0.0/go.mod h1:hNIlj7HEI86fIcpObd7a0FcrxTWetlwJDGcceTlRvqc=
 github.com/mitchellh/cli v1.1.0 h1:tEElEatulEHDeedTxwckzyYMA5c86fbmNIUL1hBIiTg=
 github.com/mitchellh/cli v1.1.0/go.mod h1:xcISNoH86gajksDmfB23e/pu+B+GeFRMYmoHXxx3xhI=
+github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db h1:62I3jR2EmQ4l5rM/4FEfDWcRD+abF5XlKShorW5LRoQ=
+github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db/go.mod h1:l0dey0ia/Uv7NcFFVbCLtqEBQbrT4OCwCSKTEv6enCw=
 github.com/mitchellh/go-homedir v1.0.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
 github.com/mitchellh/go-homedir v1.1.0 h1:lukF9ziXFxDFPkA1vsr5zpc1XuPDn/wFntq5mG+4E0Y=
 github.com/mitchellh/go-testing-interface v1.0.0 h1:fzU/JVNcaqHQEcVFAKeR41fkiLdIPrefOvVG1VZ96U0=
@@ -1007,8 +1013,8 @@ github.com/moricho/tparallel v0.2.1/go.mod h1:fXEIZxG2vdfl0ZF8b42f5a78EhjjD5mX8q
 github.com/morikuni/aec v1.0.0 h1:nP9CBfwrvYnBRgY6qfDQkygYDmYwOilePFkwzv4dU8A=
 github.com/morikuni/aec v1.0.0/go.mod h1:BbKIizmSmc5MMPqRYbxO4ZU0S0+P200+tUnFx7PXmsc=
 github.com/morph-l2/go-ethereum v1.10.14-0.20251125061742-69718a9dcab9/go.mod h1:tiFPeidxjoCmLj18ne9H3KQdIGTCvRC30qlef06Fd9M=
-github.com/morph-l2/go-ethereum v1.10.14-0.20251219060125-03910bc750a2 h1:FUv9gtnvF+1AVrkoNGYbVOesi7E+STjdfD2mcqVaEY0=
-github.com/morph-l2/go-ethereum v1.10.14-0.20251219060125-03910bc750a2/go.mod h1:tiFPeidxjoCmLj18ne9H3KQdIGTCvRC30qlef06Fd9M=
+github.com/morph-l2/go-ethereum v1.10.14-0.20260206063816-522b70a5f16f h1:e8gfduHc4AKlR0fD6J3HXveP2Gp4PMvN2UfA9CYEvEc=
+github.com/morph-l2/go-ethereum v1.10.14-0.20260206063816-522b70a5f16f/go.mod h1:tiFPeidxjoCmLj18ne9H3KQdIGTCvRC30qlef06Fd9M=
 github.com/mschoch/smat v0.0.0-20160514031455-90eadee771ae h1:VeRdUYdCw49yizlSbMEn2SZ+gT+3IUKx8BqxyQdz+BY=
 github.com/mschoch/smat v0.0.0-20160514031455-90eadee771ae/go.mod h1:qAyveg+e4CE+eKJXWVjKXM4ck2QobLqTDytGJbLLhJg=
 github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f h1:KUppIJq7/+SVif2QVs3tOP0zanoHgBEVAwHxUSIzRqU=
@@ -1155,6 +1161,8 @@ github.com/sashamelentyev/usestdlibvars v1.13.0 h1:uObNudVEEHf6JbOJy5bgKJloA1bWj
 github.com/sashamelentyev/usestdlibvars v1.13.0/go.mod h1:D2Wb7niIYmTB+gB8z7kh8tyP5ccof1dQ+SFk+WW5NtY=
 github.com/satori/go.uuid v1.2.0 h1:0uYX9dsZ2yD7q2RtLRtPSdGDWzjeM3TbMJP9utgA0ww=
 github.com/satori/go.uuid v1.2.0/go.mod h1:dA0hQrYB0VpLJoorglMZABFdXlWrHn1NEOzdhQKdks0=
+github.com/schollz/progressbar/v3 v3.19.0 h1:Ea18xuIRQXLAUidVDox3AbwfUhD0/1IvohyTutOIFoc=
+github.com/schollz/progressbar/v3 v3.19.0/go.mod h1:IsO3lpbaGuzh8zIMzgY3+J8l4C8GjO0Y9S69eFvNsec=
 github.com/sean-/seed v0.0.0-20170313163322-e2103e2c3529 h1:nn5Wsu0esKSJiIVhscUtVbo7ada43DJhG55ua/hjS5I=
 github.com/sean-/seed v0.0.0-20170313163322-e2103e2c3529/go.mod h1:DxrIzT+xaE7yg65j358z/aeFdxmN0P9QXhEzd20vsDc=
 github.com/securego/gosec/v2 v2.13.1 h1:7mU32qn2dyC81MH9L2kefnQyRMUarfDER3iQyMHcjYM=

node/core/batch.go

@@ -178,6 +178,17 @@ func (e *Executor) CalculateCapWithProposalBlock(currentBlockBytes []byte, curre
 		return false, err
 	}
 
+	// MPT fork: force batch points on the 1st and 2nd post-fork blocks, so the 1st post-fork block
+	// becomes a single-block batch: [H1, H2).
+	force, err := e.forceBatchPointForMPTFork(height, block.Timestamp, block.StateRoot, block.Hash)
+	if err != nil {
+		return false, err
+	}
+	if force {
+		e.logger.Info("MPT fork: force batch point", "height", height, "timestamp", block.Timestamp)
+		return true, nil
+	}
+
 	var exceeded bool
 	if e.isBatchUpgraded(block.Timestamp) {
 		exceeded, err = e.batchingCache.batchData.WillExceedCompressedSizeLimit(e.batchingCache.currentBlockContext, e.batchingCache.currentTxsPayload)
@@ -187,6 +198,79 @@ func (e *Executor) CalculateCapWithProposalBlock(currentBlockBytes []byte, curre
 	return exceeded, err
 }
 
+// forceBatchPointForMPTFork forces batch points at the 1st and 2nd block after the MPT fork time.
+//
+// Design goals:
+// - Minimal change: only affects batch-point decision logic.
+// - Stability: CalculateCapWithProposalBlock can be called multiple times at the same height; return must be consistent.
+// - Performance: after handling (or skipping beyond) the fork boundary, no more HeaderByNumber calls are made.
+func (e *Executor) forceBatchPointForMPTFork(height uint64, blockTime uint64, stateRoot common.Hash, blockHash common.Hash) (bool, error) {
+	// If we already decided to force at this height, keep returning true without extra RPCs.
+	if e.mptForkForceHeight == height && height != 0 {
+		return true, nil
+	}
+	// If fork boundary is already handled and this isn't a forced height, fast exit.
+	if e.mptForkStage >= 2 {
+		return false, nil
+	}
+
+	// Ensure we have fork time cached (0 means disabled).
+	if e.mptForkTime == 0 {
+		e.mptForkTime = e.l2Client.MPTForkTime()
+	}
+	forkTime := e.mptForkTime
+	if forkTime == 0 || blockTime < forkTime {
+		return false, nil
+	}
+	if height == 0 {
+		return false, nil
+	}
+
+	// Check parent block time to detect the 1st post-fork block (H1).
+	parent, err := e.l2Client.HeaderByNumber(context.Background(), big.NewInt(int64(height-1)))
+	if err != nil {
+		return false, err
+	}
+	if parent.Time < forkTime {
+		// Log H1 (the 1st post-fork block) state root
+		// This stateRoot is intended to be used as the Rollup contract "genesis state root"
+		// when we reset/re-initialize the genesis state root during the MPT upgrade.
+		e.logger.Info(
+			"MPT_FORK_H1_GENESIS_STATE_ROOT",
+			"height", height,
+			"timestamp", blockTime,
+			"forkTime", forkTime,
+			"stateRoot", stateRoot.Hex(),
+			"blockHash", blockHash.Hex(),
+		)
+		e.mptForkStage = 1
+		e.mptForkForceHeight = height
+		return true, nil
+	}
+
+	// If parent is already post-fork, we may be at the 2nd post-fork block (H2) or later.
+	if height < 2 {
+		// We cannot be H2; mark done to avoid future calls.
+		e.mptForkStage = 2
+		return false, nil
+	}
+
+	grandParent, err := e.l2Client.HeaderByNumber(context.Background(), big.NewInt(int64(height-2)))
+	if err != nil {
+		return false, err
+	}
+	if grandParent.Time < forkTime {
+		// This is H2 (2nd post-fork block).
+		e.mptForkStage = 2
+		e.mptForkForceHeight = height
+		return true, nil
+	}
+
+	// Beyond H2: nothing to do (can't retroactively fix). Mark done for performance.
+	e.mptForkStage = 2
+	return false, nil
+}
+
 func (e *Executor) AppendBlsData(height int64, batchHash []byte, data l2node.BlsData) error {
 	if len(batchHash) != 32 {
 		return fmt.Errorf("wrong batchHash length. expected: 32, actual: %d", len(batchHash))

node/core/config.go

@@ -32,6 +32,7 @@ var (
 
 type Config struct {
 	L2                            *types.L2Config `json:"l2"`
+	L2Next                        *types.L2Config `json:"l2_next,omitempty"` // optional, for geth upgrade switch
 	L2CrossDomainMessengerAddress common.Address  `json:"cross_domain_messenger_address"`
 	SequencerAddress              common.Address  `json:"sequencer_address"`
 	GovAddress                    common.Address  `json:"gov_address"`
@@ -46,6 +47,7 @@ type Config struct {
 func DefaultConfig() *Config {
 	return &Config{
 		L2:                            new(types.L2Config),
+		L2Next:                        nil, // optional, only for upgrade switch
 		Logger:                        tmlog.NewTMLogger(tmlog.NewSyncWriter(os.Stdout)),
 		MaxL1MessageNumPerBlock:       100,
 		L2CrossDomainMessengerAddress: predeploys.L2CrossDomainMessengerAddr,
@@ -126,6 +128,16 @@ func (c *Config) SetCliContext(ctx *cli.Context) error {
 	c.L2.EngineAddr = l2EngineAddr
 	c.L2.JwtSecret = secret
 
+	// L2Next is optional - only for upgrade switch (e.g., ZK to MPT)
+	l2NextEthAddr := ctx.GlobalString(flags.L2NextEthAddr.Name)
+	l2NextEngineAddr := ctx.GlobalString(flags.L2NextEngineAddr.Name)
+	if l2NextEthAddr != "" && l2NextEngineAddr != "" {
+		c.L2Next = &types.L2Config{
+			EthAddr:    l2NextEthAddr,
+			EngineAddr: l2NextEngineAddr,
+			JwtSecret:  secret, // same secret
+		}
+	}
 	if ctx.GlobalIsSet(flags.MaxL1MessageNumPerBlock.Name) {
 		c.MaxL1MessageNumPerBlock = ctx.GlobalUint64(flags.MaxL1MessageNumPerBlock.Name)
 		if c.MaxL1MessageNumPerBlock == 0 {
@@ -161,6 +173,10 @@ func (c *Config) SetCliContext(ctx *cli.Context) error {
 		c.DevSequencer = ctx.GlobalBool(flags.DevSequencer.Name)
 	}
 
+	if ctx.GlobalIsSet(flags.BlsKeyCheckForkHeight.Name) {
+		c.BlsKeyCheckForkHeight = ctx.GlobalUint64(flags.BlsKeyCheckForkHeight.Name)
+	}
+
 	// setup batch upgrade index and fork heights
 	switch {
 	case ctx.GlobalIsSet(flags.MainnetFlag.Name):