Active direct dependers over time: total, gained/lost
59
64
66
80
92
101
112
115
129
130
125
122
128
138
153
148
148
147
137
137
130
129
133
127
124
121
113
114
116
113
111
111
109
109
174
172
185
192
192
192
159
166
240
248
259
282
286
295
306
302
300
314
317
316
319
326
326
332
332
324
322
321
2020 2021 2022 2023 2024 2025

sp-core is used at run time in 780 crates (of which 26 optionally). It is a direct run-time dependency in 465 crates. It's used only as a dev dependency in 19 crates (of which 10 directly).

Number of dependers sp-core version Downloads/month
0 35.0.1-rc1 1.3K
414 35.0.0 142K
75 34.0.0 26K
16 32.0.0 132K
12 31.0.0 9.7K
4 30.0.0 1.0K
3 29.0.0 3.2K
5 28.0.0 750
5 27.0.0 63
17 26.0.0 260
6 25.0.0 250
5 24.0.0 12
8 23.0.0 130
10 22.0.0 1.2K
1 21.1.0-dev.6 0
11 21.0.0 2.6K
4 20.0.0 300
8 18.0.0 0
2 16.0.0 25
1 15.0.0 0
2 14.0.0 0
2 13.0.0 0
1 10.0.0 0
3 8.0.0 210
8 7.0.0 410
20 6.0.0 6.3K
1 5.0.0 0
8 4.0.0 0
71 3.0.0 2.6K
76 2.0.1 3.3K
Depender (with downloads and own rev deps) sp-core version
356K 31 sp-trie ^35.0.0
352K 290 sp-io ^35.0.0
352K 531 sp-runtime ^35.0.0
352K 35 sp-state-machine ^35.0.0
351K 55 sp-application-crypto ^35.0.0
346K 55 sp-keystore ^35.0.0
217K 175 sp-api ^35.0.0
209K 26 sc-executor ^35.0.0
205K 4 sc-allocator ^35.0.0
187K 38 sp-staking ^35.0.0
173K 78 polkadot-primitives ^35.0.0
120K 1 zombienet-orchestrator ^35.0.0
104K 387 frame-support ^35.0.0
103K 322 frame-system ^35.0.0
102K 44 sp-keyring ^35.0.0
101K 166 frame-benchmarking ^35.0.0
101K 47 sp-session ^35.0.0
99K 48 pallet-transaction-payment ^35.0.0
98K 37 sp-offchain ^35.0.0
97K 46 pallet-session ^35.0.0
96K 33 frame-executive ^35.0.0
95K 9 pallet-grandpa ^35.0.0
95K 18 sp-consensus-babe ^35.0.0
95K 28 frame-system-benchmarking ^35.0.0
94K 18 sp-consensus-grandpa ^35.0.0
93K 8 sp-statement-store ^35.0.0
90K 48 polkadot-parachain-primitives ^35.0.0
89K 15 frame-election-provider-support ^35.0.0
89K 8 pallet-babe ^35.0.0
89K 20 polkadot-core-primitives ^35.0.0
90K 13 sp-npos-elections ^35.0.0
89K 9 cumulus-primitives-parachain-inherent ^35.0.0
88K 7 pallet-election-provider-multi-phase ^35.0.0
88K 8 pallet-indices ^35.0.0
88K 33 pallet-utility ^35.0.0
89K 57 staging-xcm-executor ^35.0.0
87K 23 pallet-assets ^35.0.0
87K 5 pallet-bounties ^35.0.0
87K 5 pallet-broker ^35.0.0
87K 42 pallet-message-queue ^35.0.0
87K 40 pallet-xcm ^35.0.0
87K 20 polkadot-runtime-parachains ^35.0.0
86K 11 bp-xcm-bridge-hub-router ^34.0.0
86K 33 cumulus-pallet-parachain-system ^35.0.0
86K 25 cumulus-pallet-xcmp-queue ^34.0.0
86K 10 pallet-asset-conversion ^35.0.0
86K 6 pallet-asset-tx-payment ^35.0.0
86K 8 pallet-collective ^35.0.0
86K 6 pallet-mmr ^35.0.0
86K 32 parachains-common ^35.0.0
86K 35 polkadot-runtime-common ^35.0.0
86K 13 sp-mmr-primitives ^35.0.0
85K 4 pallet-beefy-mmr ^35.0.0
85K 4 pallet-child-bounties ^35.0.0
85K 5 pallet-membership ^35.0.0
85K 3 pallet-parameters ^35.0.0
85K 7 pallet-state-trie-migration ^35.0.0
85K 13 sp-consensus-beefy ^35.0.0
84K 5 pallet-im-online ^35.0.0
84K 3 pallet-nis ^35.0.0
84K 6 pallet-nomination-pools ^35.0.0
84K 7 pallet-ranked-collective ^35.0.0
83K 5 pallet-democracy ^35.0.0
83K 8 pallet-elections-phragmen ^35.0.0
83K 4 pallet-tips ^35.0.0
82K 19 bp-header-chain ^35.0.0
82K 19 bp-messages ^35.0.0
82K 15 bp-polkadot-core ^35.0.0
82K 29 bp-runtime ^35.0.0
82K 7 pallet-nfts ^35.0.0
82K 4 pallet-xcm-bridge-hub-router ^34.0.0
82K 8 snowbridge-beacon-primitives ^35.0.0
82K 15 snowbridge-core ^35.0.0
82K 7 snowbridge-router-primitives ^35.0.0
80K 6 bp-xcm-bridge-hub ^35.0.0
81K 1 bridge-hub-test-utils ^35.0.0
81K 4 pallet-root-testing ^35.0.0
81K 5 pallet-xcm-bridge-hub ^34.0.0
81K 4 parachains-runtimes-test-utils ^35.0.0
81K 9 rococo-runtime-constants ^35.0.0
81K 1 snowbridge-runtime-test-common ^35.0.0
80K 8 bp-parachains ^35.0.0
80K 3 bp-test-utils ^35.0.0
80K 4 bridge-hub-common ^35.0.0
80K 3 pallet-alliance ^35.0.0
80K 15 pallet-contracts ^35.0.0
80K 4 pallet-core-fellowship ^35.0.0
80K 4 pallet-glutton ^35.0.0
80K 4 pallet-salary ^35.0.0
80K 3 snowbridge-outbound-queue-merkle-tree ^35.0.0
80K 4 snowbridge-pallet-ethereum-client ^35.0.0
80K 3 snowbridge-pallet-ethereum-client-fixtures ^35.0.0
80K 3 snowbridge-pallet-inbound-queue ^35.0.0
80K 2 snowbridge-pallet-inbound-queue-fixtures ^35.0.0
80K 4 snowbridge-pallet-outbound-queue ^35.0.0
80K 4 snowbridge-pallet-system ^35.0.0
79K 3 polkadot-sdk-frame ^35.0.0
78K 9 westend-runtime-constants ^35.0.0
78K 3 pallet-asset-conversion-ops ^35.0.0
78K 1 pallet-atomic-swap ^35.0.0
78K 3 pallet-collective-content ^35.0.0
78K 2 pallet-contracts-mock-network ^35.0.0
78K 3 pallet-migrations ^35.0.0
78K 1 pallet-node-authorization ^35.0.0
78K 1 pallet-paged-list ^35.0.0
78K 1 pallet-remark ^35.0.0
78K 6 pallet-revive ^35.0.0
77K pallet-revive-mock-network ^34.0.0
78K 1 pallet-statement ^35.0.0
78K 2 sp-consensus-pow ^35.0.0
151K 16 polkadot-sdk optional ^35.0.0
95K 37 substrate-wasm-builder optional ^35.0.0
89K 4 sp-transaction-storage-proof optional ^35.0.0
88K 14 pallet-treasury optional ^35.0.0
87K 8 pallet-preimage optional ^35.0.0
86K 5 pallet-asset-rate optional ^35.0.0
84K 5 pallet-bags-list optional ^35.0.0
20K 20 sc-chain-spec ^35.0.0
20K 70 sc-client-api ^35.0.0
20K 28 sc-consensus ^35.0.0
21K 41 sc-network ^35.0.0
20K 16 sc-rpc-api ^35.0.0
21K 75 sp-blockchain ^35.0.0
21K 42 sp-consensus ^35.0.0
20K 11 sc-block-builder ^35.0.0
20K 12 sp-rpc ^35.0.0
17K 21 sc-cli ^35.0.0
17K 6 sc-client-db ^35.0.0
17K 13 sc-keystore ^35.0.0
18K 21 sc-rpc ^35.0.0
17K 24 sc-service ^35.0.0
17K 2 sc-state-db ^35.0.0
17K 14 sc-tracing ^35.0.0
17K 13 sc-transaction-pool ^35.0.0
16K 21 sc-transaction-pool-api ^35.0.0
15K 12 frame-benchmarking-cli ^35.0.0
15K 4 sc-mixnet ^35.0.0
15K 13 sc-network-sync ^35.0.0
14K 9 pallet-transaction-payment-rpc ^35.0.0
15K 9 sc-basic-authorship ^35.0.0
14K 5 sc-consensus-slots ^35.0.0
15K 5 sc-offchain ^35.0.0
15K 8 substrate-frame-rpc-system ^35.0.0
13K 2 sc-network-light ^35.0.0
13K 3 sc-rpc-spec-v2 ^35.0.0
13K 13 sc-sysinfo ^35.0.0
13K 6 sc-consensus-aura ^35.0.0
13K 8 sc-consensus-grandpa ^35.0.0
9.2K 4 sc-authority-discovery ^35.0.0
8.5K 9 sc-consensus-babe ^35.0.0
7.7K 18 polkadot-overseer ^35.0.0
7.5K 3 polkadot-statement-table ^35.0.0
7.5K 34 polkadot-node-primitives ^35.0.0
6.5K 2 sc-consensus-grandpa-rpc ^35.0.0
6.4K 2 sc-consensus-babe-rpc ^35.0.0
6.3K 2 sc-storage-monitor ^35.0.0
5.1K 6 substrate-state-trie-migration-rpc ^35.0.0
4.9K 7 cumulus-client-cli ^35.0.0
4.9K 2 cumulus-relay-chain-rpc-interface ^35.0.0
4.8K 9 polkadot-erasure-coding ^35.0.0
4.8K 5 sp-finality-grandpa ^18.0.0
4.8K 24 polkadot-node-subsystem-util ^35.0.0
4.8K 5 polkadot-node-core-pvf-common ^35.0.0
4.7K 2 polkadot-collator-protocol ^35.0.0
4.7K sp-allocator ^3.0.0
4.7K 5 polkadot-node-core-pvf ^35.0.0
4.7K 3 cumulus-client-network ^35.0.0
4.7K 2 polkadot-gossip-support ^35.0.0
4.7K 10 cumulus-client-consensus-common ^35.0.0
4.7K 6 cumulus-client-service ^35.0.0
4.7K 2 polkadot-node-collation-generation ^35.0.0
4.7K 7 cumulus-client-collator ^35.0.0
4.7K 2 polkadot-availability-distribution ^35.0.0
4.7K 5 polkadot-service ^35.0.0
4.6K 6 cumulus-client-consensus-aura ^35.0.0
4.6K sc-transaction-graph ^3.0.0
4.6K 8 polkadot-cli ^35.0.0
4.5K 2 mmr-rpc ^35.0.0
4.5K 2 mmr-gadget ^35.0.0
4.5K 4 sc-consensus-beefy ^35.0.0
4.5K 2 sc-consensus-beefy-rpc ^35.0.0
4.4K sc-light ^3.0.0
4.4K 2 cumulus-relay-chain-inprocess-interface ^35.0.0
4.3K 3 sc-finality-grandpa ^18.0.0
4.1K polkadot-node-jaeger ^34.0.0
4.0K 4 frame-remote-externalities ^35.0.0
4.0K 2 rococo-runtime ^35.0.0
3.4K 1 ep-core ^35.0.0
3.4K 22 encointer-primitives ^35.0.0
3.4K 1 penpal-runtime ^35.0.0
3.3K 3 pallet-encointer-ceremonies ^35.0.0
3.3K 3 pallet-encointer-reputation-commitments ^35.0.0
3.3K pallet-encointer-democracy ^35.0.0
3.3K 1 pallet-encointer-treasuries ^35.0.0
3.3K pallet-encointer-faucet ^35.0.0
3.3K 1 emulated-integration-tests-common ^35.0.0
3.3K pallet-encointer-bazaar ^35.0.0
2.7K 2 xcm-emulator ^34.0.0
2.3K sp-consensus-vrf ^20.0.0
2.3K 5 contract-extrinsics ^32.0.0
2.2K 1 pallet-example-offchain-worker ^34.0.0
1.8K sp-tasks ^3.0.0
1.4K 2 try-runtime-cli ^32.0.0
1.1K 2 vade-evan-substrate ^2.0.0-rc4
1.0K 3 ink_e2e ^32.0.0
1.0K 2 westend-runtime ^35.0.0
1.0K 3 sc-consensus-manual-seal ^35.0.0
900 14 orml-utilities ^35.0.0
800 sp-sandbox ^3.0.0
800 14 orml-traits ^35.0.0
700 4 cumulus-client-consensus-relay-chain ^35.0.0
650 1 gear-sandbox ^34.0.0
650 2 gear-common ^34.0.0
600 pallet-contracts-rpc ^3.0.0
600 3 ink_sandbox ^32.0.0
550 pallet-example-tasks ^34.0.0
550 2 gsdk ^34.0.0
500 1 staging-node-inspect ^35.0.0
480 1 sc-consensus-pow ^35.0.0
430 1 sc-statement-store ^35.0.0
420 polkadot-parachain-lib ^34.0.0
420 polymesh-offline-signer ^26.0
350 1 pallet-revive-eth-rpc ^35.0.0
330 1 bridge-hub-rococo-runtime ^35.0.0
330 3 ac-primitives ^35.0
320 2 ac-node-api ^35.0
320 1 bridge-hub-westend-runtime ^35.0.0
300 substrate-api-client ^35.0
300 cargo-contract ^32.0.0
280 2 polkadot-omni-node-lib ^35.0.0
280 1 parachain-template-runtime ^30.0.0
260 1 pallet-verify-signature ^35.0.0
250 offchain-utils ^34.0.0
220 3 wasm-testbed ^3.0
220 1 shell-runtime ^34.0.0
210 2 polkadot-parachain ^22.0.0
190 5 gadget-io ^31.0.0
190 phink ^34.0.0
180 ac-keystore ^35.0
180 1 asset-hub-westend-runtime ^35.0.0
180 encointer-balances-tx-payment-rpc ^35.0.0
180 pallet-encointer-communities-rpc ^35.0.0
170 pallet-encointer-treasuries-rpc ^35.0.0
160 orml-rewards ^35.0.0
150 sc-client ^2.0.0-alpha.6
140 substrate-frame-cli ^32.0.0
140 3 gadget-sdk ^31.0.0
130 orml-gradually-update ^35.0.0
130 orml-parameters ^35.0.0
130 1 gear-runtime-primitives ^34.0.0
120 xcm-simulator-example ^35.0.0
120 orml-benchmarking ^35.0.0
120 orml-authority ^35.0.0
120 orml-rate-limit ^35.0.0
110 1 polkadot-runtime ^24.0.0
100 1 centichain_keypair ^35.0.0
1 pop-contracts ^32.0.0
1 pop-parachains ^32.0.0
pop-cli ^32.0.0
sc-finality-grandpa-rpc ^18.0.0
4 pallet-evm ^3.0.0
3 polymesh-api-client ^26.0
2 pallet-contracts-for-drink ^23.0.0
collectives-polkadot-runtime ^26.0.0
1 rococo-parachain-runtime ^34.0.0
11 fp-evm ^3.0.0
2 pink-chain-extension ^21
cc_transaction ^34.0
npos-miner ^27.0.0
1 blueprint-manager ^31.0.0
pallet-mandate ^3.0.0
sub-script ^3.0
1 suntime ^2.0.0-rc4
1 asset-hub-rococo-runtime ^35.0.0
15 sunshine-util ^2.0.0-rc4
1 sunshine-bounty-node ^2.0.0-rc4
walletgen ^20.0.0
pink-drink ^23.0.0
sunshine-faucet-pallet ^2.0.0-rc4
1 collectives-westend-runtime ^35.0.0
pallet-elections ^3.0.0
polkadot-parachain-bin ^27.0.0
1 seedling-runtime ^34.0.0
3 substrate-abi ^6.0.0
sunshine-identity-pallet ^2.0.0-rc4
blueprint-test-utils ^31.0.0
1 contracts-parachain-runtime ^34.0.0
polymesh-api-tester ^26.0
1 contracts-node-runtime ^34.0.0
2 drink-pink-runtime ^23.0.0
5 entropy-shared ^29.0.0
baedeker ^35.0.0
2 substrate-contracts-abi ^6.0.0
2 substrate-runtime-proposal-hash ^3.0
4 entropy-protocol ^31.0.0
2 chainql-core ^35.0.0
pallet-ssvm ^3.0.0
people-westend-runtime ^34.0.0
sunshine-bounty-client ^2.0.0-rc4
coretime-westend-runtime ^34.0.0
subwallet ^2.0.0-rc2
people-rococo-runtime ^34.0.0
4 fp-consensus ^3.0.0
1 glutton-westend-runtime ^35.0.0
contracts-node ^34.0.0
2 pallet-contracts-next ^28.0.0
1 contracts-rococo-runtime ^34.0.0
1 stp258-traits ^3.0.0
xcm-simulator-fuzzer ^22.0.0
coretime-rococo-runtime ^34.0.0
2 desub-legacy ^4.0.0
donkey ^5.0.0
3 fc-db ^3.0.0
pallet-mmr-primitives ^3.0.0
1 staging-kusama-runtime ^24.0.0
cumulus-pov-validator ^35.0.0
2 entropy-client ^31.0.0
1 beefy-gadget ^18.0.0
griffin-solochain-node ^34.0.0
1 kusama-runtime-constants ^24.0.0
2 pallet-contract-operator ^2.0.0-rc4
1 griffin-solochain-runtime ^34.0.0
1 pallet-ovm ^3.0.0
2 xbi-format ^6.0.0
pallet-ibc ^2.0.0
2 pink-extension-runtime ^21
rosetta-server-astar ^16.0.0
xbi-receiver ^6.0.0
2 xp-format ^6.0.0
asset-hub-polkadot-runtime ^26.0.0
2 entropy-kvdb ^31.0.0
4 fp-rpc ^3.0.0
3 griffin-core ^34.0.0
pallet-dynamic-fee ^3.0.0
vrs-core-sdk ^34.0.0
beefy-gadget-rpc ^18.0.0
gekko ^3.0.0
1 sp-fragnova ^6.0.0
xs-channel ^6.0.0
asset-hub-kusama-runtime ^26.0.0
bridge-hub-polkadot-runtime ^26.0.0
1 entropy-tss ^31.0.0
pallet-plasma ^3.0.0
bridge-hub-kusama-runtime ^26.0.0
entropy-testing-utils ^31.0.0
griffin-wallet ^34.0.0
1 ovr-evm-precompile-bn128 ^6.0.0
pallet-dapps-staking ^2.0.0-rc4
pallet-evm-precompile-bn128 ^3.0.0
pallet-evm-precompile-modexp ^3.0.0
pallet-evm-precompile-simple ^3.0.0
pallet-operator-trading ^2.0.0-rc4
1 polkadot-runtime-releaser-lib ^34.0
3 sp-beefy ^18.0.0
edgeware-primitives ^2.0.0
pallet-cosmos-abci ^2.0.0
pallet-evm-precompile-blake2 ^3.0.0
pallet-evm-precompile-dispatch ^3.0.0
pallet-evm-precompile-ed25519 ^3.0.0
pallet-evm-precompile-sha3fips ^3.0.0
pallet-plasm-lockdrop ^2.0.0-rc4
pallet-plasm-validator ^2.0.0-rc4
swarm-host ^7.0.0
2 desub-current ^4.0.0
pallet-octopus-appchain ^3.0.0
5 serp-traits ^3.0.0
anychain-polkadot ^30.0.0
3 desub-common ^4.0.0
1 polkadot-runtime-constants ^24.0.0
tpfs_krypt ^3.0.0
entropy-test-cli ^31.0.0
2 fc-consensus ^3.0.0
mmr-primitives ^34.0.0
pallet-contracts-mock-network-next ^28.0.0
slothunter ^26.0
bittensor-wallet ^34.0.0
celer-pay-module ^2.0.0
celer-pay-module-rpc ^2.0.0
cumulus-test-runtime ^22.0.0
dotvanity ^2.0.0-rc3
pallet-hookpoints ^22.0.0
parachain-template-node =21.1.0-dev.6
glutton-runtime ^26.0.0
pdotc ^21.0
serp-example-ocw ^2.0.0
gadget-common ^29.0.0
1 gadget-core ^29.0.0
1 ink-zombienet-orchestrator ^22.0.0
pallet-reclaim ^21.0.0
violet-node-runtime ^32.0.0
cargo-eosiocontract optional ^2.0.1
gear-subxt optional ^21.0.0
lollipop optional ^30.0.0
1 obce optional ^23
1 t3rn-types optional ^6.0.0
173K 54 subxt dev ^35.0.0
169K 25 subxt-signer dev ^35.0.0
4.8K 6 pallet-randomness-collective-flip dev ^15.0.0
3.3K 6 pallet-encointer-communities dev ^35.0.0
3.3K 1 encointer-meetup-validation dev ^35.0.0
3.3K 1 encointer-ceremonies-assignment dev ^35.0.0
2.6K 8 contract-transcode dev ^32.0.0
950 4 gp-runtime-interface dev ^22.0.0
450 orml-xtokens dev ^35.0.0
330 1 orml-tokens dev ^35.0.0
300 1 orml-currencies dev ^35.0.0
270 orml-vesting dev ^35.0.0
200 orml-nft dev ^35.0.0
140 orml-oracle dev ^35.0.0
120 orml-unknown-tokens dev ^35.0.0
120 orml-auction dev ^35.0.0
110 orml-asset-registry dev ^35.0.0
110 orml-payments dev ^35.0.0
1 pallet-ethereum dev ^3.0.0
1 sunshine-court dev ^2.0.0-rc4
3 substrate-crypto-light dev ^35.0.0
substrate-ai dev ^2.0.0
6 sunshine-membership dev ^2.0.0-rc2
3 sunshine-donate dev ^2.0.0-rc4
2 protos dev ^14.0.0
sunshine-vote-petition dev ^2.0.0-rc2
4 sunshine-shares-membership dev ^2.0.0-rc2
5 sunshine-vote dev ^2.0.0-rc4
3 sunshine-shares-atomic dev ^2.0.0-rc2
1 buidl-derive dev ^32.0.0
9 sunshine-org dev ^2.0.0-rc4
sunshine-vote-yesno dev ^2.0.0-rc2
3 sunshine-bank dev ^2.0.0-rc4
2 sunshine-bounty dev ^2.0.0-rc4
1 pallet-ordinals dev ^32.0.0
pallet-commodities dev ^2.0.0
sunshine-bank-onchain dev ^2.0.0-rc2
plonk-pallet dev ^3.0.0
evan-test-pallet dev ^3.0.0
pallet-bank dev ^7.0.0
collectives-polkadot-integration-tests dev ^22.0.0
pallet-plonk dev ^3.0.0
serp-market dev ^3.0.0
sunshine-bank-offchain dev ^2.0.0-rc2
2 xand-address dev ^10.0.0
2 pallet-plasm-rewards dev ^2.0.0-rc4
1 edge-voting dev ^2.0.0
1 pallet-merkle dev ^3.0.0
substrate-barcode-scanner-pallet dev ^2.0.0
sum-storage dev ^2.0.0-alpha.6
pallet-dotchip dev ^3.0.0
pallet-ddxp dev ^2.0.0
pallet-rbac dev ^7.0.0
stp258-tokens dev ^3.0.0
zero-network dev ^3.0.0
2 ovmi dev ^3.0.0
pallet-logion-loc dev ^3.0.0
pallet-logion-vault dev ^3.0.0
pallet-verified-recovery dev ^3.0.0
multi-gomoku dev ^2.0.0
multi-session-app dev ^2.0.0
pallet-curveless-staking dev ^3.0.0
pallet-mixer dev ^3.0.0
pallet-pair dev ^3.0.0
pallet-product-registry dev ^2.0.0
portablegabi-pallet dev ^2.0.0-rc3
simple-map dev ^3.0
4 stp258-serp dev ^3.0.0
bounties_market dev ^2.0.0-rc5
edge-signaling dev ^2.0.0
edge-treasury-reward dev ^2.0.0
punk-pallet dev ^2.0.0
serp-tes dev ^3.0.0
stp258-currencies dev ^3.0.0
test-pallet dev ^3.0.0
pallet-cipher-ddc dev ^2.0.0
single-gomoku dev ^2.0.0
1 single-session-app dev ^2.0.0
pallet-lo-authority-list dev ^3.0.0
2 stp258-standard dev ^3.0.0