diff --git a/default.nix b/default.nix
index b20c6c2..44057ac 100644
--- a/default.nix
+++ b/default.nix
@@ -3,7 +3,7 @@
 
 stdenv.mkDerivation rec {
   name = "mcd-${version}";
-  version = "0.2.7-rc.1";
+  version = "0.2.8-rc.1";
   src = ./.;
 
   nativeBuildInputs = [makeWrapper];
diff --git a/libexec/mcd/conf/kovan.json b/libexec/mcd/conf/kovan.json
index 5c04872..892eb2f 100644
--- a/libexec/mcd/conf/kovan.json
+++ b/libexec/mcd/conf/kovan.json
@@ -1,64 +1,65 @@
 {
   "ETH_FROM": "0x61de44946D6b809a30D8e6A236157966659f9640",
-  "MULTICALL": "0x1d0a16aed8701d82ca70dfacb2b64aa433a5cfc3",
+  "MULTICALL": "0x81dcf75604d228df5c609ca4d61a979f2077a0c9",
   "FAUCET": "0xa402e771a4662dcbe661e839a6e8c294d2ce44cf",
-  "MCD_DEPLOY": "0x4ba936a9338ae211300ea47899fbd111fd5dca31",
-  "MCD_GOV": "0xb54d411a3cf9cd2301917d558c05c174612da367",
-  "MCD_GOV_GUARD": "0x30d33e3548671b73a0b8e7f31321b1fcc99a6e05",
-  "MCD_IOU": "0xec1412c71aa154c02de368f4921a636fa441b973",
-  "MCD_ADM": "0xcba4147decf3c7c2544b99a3c8510050f85b99a1",
-  "VOTE_PROXY_FACTORY": "0xdab69a749194dc39c3c2bbabc29e87ebb4f07215",
-  "MCD_VAT": "0x57aa8b02f5d3e28371fedcf672c8668869f9aac7",
-  "MCD_JUG": "0xee59115d5e12f1d6e6c580cacd84374fbaa9a484",
-  "MCD_CAT": "0xd2195c16e366e20855c532e5b98fb11bd3573398",
-  "MCD_VOW": "0x528c10d35d9612d1667d2d9b8915f80a573a800b",
-  "MCD_JOIN_DAI": "0x3852fdbae39ffb9d84b500fc791ced1079906c20",
-  "MCD_FLAP": "0xff8d60653f3bee3aff8455fcfe288dd5926f607a",
-  "MCD_FLOP": "0x74b5affa19f939ca33b28180276939441eaf9518",
-  "MCD_PAUSE": "0xbdc0a16f4e179cf53396ee7f28b4811e875e281f",
-  "MCD_PAUSE_PROXY": "0x71ce79fcfec71760d51f6b3589c0d9ec0ccb64a8",
-  "MCD_GOV_ACTIONS": "0x291759053d1e26b9d0894b2b51a6161505eab73c",
-  "MCD_DAI": "0xefd9e051a1db14cb6cb6560b3423c379fa2151bc",
-  "MCD_SPOT": "0xa57d4123c8a80ac410e924df9d5e47765ffd1375",
-  "MCD_POT": "0x7b79a79a0eff60bc9fc14bd2c67261eed378add6",
-  "MCD_END": "0x4aafd6e15b604d1b82bb8b995c36f26d7a992ae0",
-  "PROXY_ACTIONS": "0x0c6af193ca45c42e7eaaced8f76a4bbdac54eca4",
-  "CDP_MANAGER": "0xbd74118d21510de43c858494e066e154c1d51e5f",
-  "GET_CDPS": "0x93f8b09dbf635c8895a266c0f6ccd7d433f5d184",
-  "PROXY_FACTORY": "0x0ca24922a675fb4f85eef118be285f10f099e571",
-  "PROXY_REGISTRY": "0x510072953df93addb00d44202e4246214cf9e8d9",
+  "MCD_DEPLOY": "0xc0fb0c166013030a1a5e4d45139f125f8d225421",
+  "MCD_GOV": "0xa90843676a7f747a3c8adda142471369346369c1",
+  "MCD_GOV_GUARD": "0x7314f25497369907a40b3272c53a4f3025caeb3f",
+  "MCD_IOU": "0xaf018b5ae18a9ee1182e758a8565f1ff2d46b1db",
+  "MCD_ADM": "0xe5d22b1887cac1e3f84c5bbefb7c25526e6a0c37",
+  "VOTE_PROXY_FACTORY": "0xdc0e2cc2477eb4063078ba5cc346a7b4f7619d08",
+  "MCD_VAT": "0x284ecb5880cdc3362d979d07d162bf1d8488975d",
+  "MCD_JUG": "0x92da9b203523bd9bd877ec57cce308dd493b85f2",
+  "MCD_CAT": "0x9097e908c691e8cc77290305b69b0c5f4e8c31c9",
+  "MCD_VOW": "0xdbf8e0d733bb42ac3a2016d7e579824a8903e10c",
+  "MCD_JOIN_DAI": "0xd7e736c39173c2d571b07abf467fddeb68040d3c",
+  "MCD_FLAP": "0x164a942d9d7a269b2dc8551c8dfad32e8ffd0b80",
+  "MCD_FLOP": "0x668001c75a9c02d6b10c7a17dbd8aa4afff95037",
+  "MCD_PAUSE": "0xb4fec50aac35146e67a1ad426f74bae647f34e60",
+  "MCD_PAUSE_PROXY": "0x29a6f0ac0bf5a3d658abc877bcf6dbbb70a48e75",
+  "MCD_GOV_ACTIONS": "0x924b5beb03c77da75c79d2d47cfd21822dc8d721",
+  "MCD_DAI": "0x4cb763de9ad80e0e347fb1ff763e5cf85ebf7c33",
+  "MCD_SPOT": "0xee4b1f689251f70b05cdcceff2dbe144fc596922",
+  "MCD_POT": "0xd097295f999608a8a69e892a6b6d51fa0676ca4c",
+  "MCD_END": "0x59a779cc66c688f5acf11e7c50fab5558d1d1773",
+  "MCD_ESM": "0x90f2b6bb1eb20b6b5ff8a0728b3cb6edb79b225e",
+  "PROXY_ACTIONS": "0x98e3a3d95e380804668c7ad5f851f78c26861f24",
+  "CDP_MANAGER": "0xb254b61e5b314d60443c9e4097335809421643ef",
+  "GET_CDPS": "0x070b621a890f60bab21930cf3ad2f57850b59b4a",
+  "PROXY_FACTORY": "0x786f4a6f59d05b2498f387ca6f255ad8b7478da5",
+  "PROXY_REGISTRY": "0x5365f60e92ed9d77ed922181a6ac050edf12cfe6",
   "ETH": "0xb39862d7d1b11cd9b781b1473e142cbb545a6871",
   "PIP_ETH": "0x8C73Ec0fBCdEC6b8C060BC224D94740FD41f3774",
-  "MCD_JOIN_ETH_A": "0x45a321bd5157a4855cd60a3a1d1eebec53141adb",
-  "MCD_FLIP_ETH_A": "0x2380b8d2f2ef5fe06ef0a4d78b75744861c948e4",
-  "MCD_JOIN_ETH_B": "0xf00b577108d6bde6c171fa1c66040652d63cf19a",
-  "MCD_FLIP_ETH_B": "0x3cb81d6e3cc94640cf9c447c4bdcd40e39996c55",
-  "MCD_JOIN_ETH_C": "0xf2c39e7f640aa4f7d796365593ba9762d93f32eb",
-  "MCD_FLIP_ETH_C": "0xc4dc89670ba82e75e9518a298bfdd3dfe1e8dccb",
+  "MCD_JOIN_ETH_A": "0x1ff550fbbc6b03e9847054e2dc911005602e12f5",
+  "MCD_FLIP_ETH_A": "0x43c331c0389a92af62ee726d5ae0c8a424320c31",
+  "MCD_JOIN_ETH_B": "0x4f0914cbbc8ec0298d621c4963b0e1431787b58d",
+  "MCD_FLIP_ETH_B": "0x2151047513dbeac7eccd0c97ece5f270649b3604",
+  "MCD_JOIN_ETH_C": "0x547eb61fc9990ded3281d1a19abd9ba0c1fbe2ac",
+  "MCD_FLIP_ETH_C": "0xf4d49a91a37ba0eeada456977e18f2f23f1b3ebc",
   "COL1": "0xc644e83399f3c0b4011d3dd3c61bc8b1617253e5",
   "PIP_COL1": "0xF2643546d27c8a5388D9Be48170d74b9c9Be39a6",
-  "MCD_JOIN_COL1_A": "0xec0b2a27e42151dd39725447efd9ac5469c93842",
-  "MCD_FLIP_COL1_A": "0x13bcacebebed5b8c771fda2efb84a6240ecc74f3",
+  "MCD_JOIN_COL1_A": "0x7a09d1f114a26c5508ddaa8e135e9844192f0bbe",
+  "MCD_FLIP_COL1_A": "0x911c1bb935ce7fe5acb8069acd52d50d3c896353",
   "COL2": "0x5500b807a9b2fada4d43c1cb5610c4338c4219cb",
   "PIP_COL2": "0x8Df8f06DC2dE0434db40dcBb32a82A104218754c",
-  "MCD_JOIN_COL2_A": "0x35598a67694a764d971900957feb309b0c0748e1",
-  "MCD_FLIP_COL2_A": "0xcbb3ae3f49e97cab4eede13d0c05d56b25cc7642",
+  "MCD_JOIN_COL2_A": "0xd1f1f269128e98004d825dab15c39a0f65b8fbfe",
+  "MCD_FLIP_COL2_A": "0x6b982b27c732ced61e12c50b000cdb209164122c",
   "COL3": "0xc6f281b59782be94c9e5404b13a1c8fa17ba5998",
   "PIP_COL3": "0xaa32EB42CBf3Bdb746b659c8DAF443f710497d80",
-  "MCD_JOIN_COL3_A": "0x09c39905bc775ccc597acbfb9d01af7e5e9e9275",
-  "MCD_FLIP_COL3_A": "0xf4a7633d5c61a7cfbdf8ca82202070e7a3421ba1",
+  "MCD_JOIN_COL3_A": "0x9293f89907f4b7d99719dca5112ebd4113fa4aa9",
+  "MCD_FLIP_COL3_A": "0xd1300443f52157ab267e66cb818d122b2c021820",
   "COL4": "0xa5f3f333350bbaeb6d78c9bdebc77fcbf4b51e73",
   "PIP_COL4": "0xc9eb67DA2d05702459C521CE3BFED097cB490F8b",
-  "MCD_JOIN_COL4_A": "0xdf5bc25d60e4023eccb6ebbe8392a5271a402211",
-  "MCD_FLIP_COL4_A": "0x80b63755b11eadb1592ac9efbc26aecdc52b402d",
+  "MCD_JOIN_COL4_A": "0x0baa37d053b184dc42a46029570a5613fab45da4",
+  "MCD_FLIP_COL4_A": "0x21a13c6678377ff2fcf74f924777aad69e1dc4ac",
   "COL5": "0x96650321379353cd636aa2d4e5d69cee1a0dd174",
   "PIP_COL5": "0xA53e6EFB4cBeD841Eace02220498860905E94998",
-  "MCD_JOIN_COL5_A": "0x475d08575c4da1942f8109c7e943b03be2fcea22",
-  "MCD_FLIP_COL5_A": "0x3fd71145a9597335deecb3823286d8d5f0d29b82",
-  "PROXY_PAUSE_ACTIONS": "0x0c3365665c076b0213b003ba2503a45ad18818b7",
-  "PROXY_DEPLOYER": "0x028adc2bea97881523b79592534adde5a1160d5c",
-  "GOV_POLL_GEN": "0x6e5ab571c533d7b5a29bc8c09c9dd1a9abadbfb1",
+  "MCD_JOIN_COL5_A": "0x29d6ec0d86548a81d4c4196eb0198fc81f817ace",
+  "MCD_FLIP_COL5_A": "0x4f3c0d0f42b9f2052c6d9cacadb6d88d9b50e037",
+  "PROXY_PAUSE_ACTIONS": "0xda5f2c93c2a5d287b04a2571c1e2aaeb909c8991",
+  "PROXY_DEPLOYER": "0xe0854e0529049b21d38535e7241f5acfe2129dd0",
+  "GOV_POLL_GEN": "0xdfe504525aa3c2aae0630f66c3a6c538a80666ac",
   "POLL_ID": "0",
-  "VOTE_YES": "0x50c961a86e34d9ab9e1b6d3cfd0569ad8774af78",
-  "VOTE_NO": "0xd98f336486d31db0c1a7012f37cab11545c83076"
+  "VOTE_YES": "0x998daaf2e1eeb10eea314aa1238d5d9eeae2a9b1",
+  "VOTE_NO": "0x4d8e5d321a1d0a74d5fa9968b5a1f1167a02c289"
 }
diff --git a/libexec/mcd/mcd---version b/libexec/mcd/mcd---version
index b8d7b2d..d12ce7e 100755
--- a/libexec/mcd/mcd---version
+++ b/libexec/mcd/mcd---version
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 cat <<.
-mcd 0.2.7-rc.1
+mcd 0.2.8-rc.1
 
 Copyright (C) 2018, 2019 dc <dc@dapp.org>