diff --git a/CHANGELOG.md b/CHANGELOG.md
index 65576d224..a03fca1c0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Lotus changelog
 
+# 1.18.2 / 2022-12-10
+
+This is an OPTIONAL patch release that fixes a recently reported bug, where the miner process crashes due to a panic during an AddPiece process. More details can be found [here](https://github.com/filecoin-project/lotus/pull/9822).
+
+
 # 1.18.1 / 2022-11-28
 
 This is a small OPTIONAL patch release for the mandatory v1.18.0 release that supports the Filecoin nv17 Shark Upgrade. 
diff --git a/build/openrpc/full.json.gz b/build/openrpc/full.json.gz
index 1322bebc3..491068bf6 100644
Binary files a/build/openrpc/full.json.gz and b/build/openrpc/full.json.gz differ
diff --git a/build/openrpc/gateway.json.gz b/build/openrpc/gateway.json.gz
index 1b244cf48..288609431 100644
Binary files a/build/openrpc/gateway.json.gz and b/build/openrpc/gateway.json.gz differ
diff --git a/build/openrpc/miner.json.gz b/build/openrpc/miner.json.gz
index bdc685324..16cde18aa 100644
Binary files a/build/openrpc/miner.json.gz and b/build/openrpc/miner.json.gz differ
diff --git a/build/openrpc/worker.json.gz b/build/openrpc/worker.json.gz
index bdf5410ca..464f445a4 100644
Binary files a/build/openrpc/worker.json.gz and b/build/openrpc/worker.json.gz differ
diff --git a/build/version.go b/build/version.go
index e1a967422..a7508e1b3 100644
--- a/build/version.go
+++ b/build/version.go
@@ -37,7 +37,7 @@ func BuildTypeString() string {
 }
 
 // BuildVersion is the local build version
-const BuildVersion = "1.18.1"
+const BuildVersion = "1.18.2"
 
 func UserVersion() string {
 	if os.Getenv("LOTUS_VERSION_IGNORE_COMMIT") == "1" {
diff --git a/documentation/en/cli-lotus-miner.md b/documentation/en/cli-lotus-miner.md
index 25a9ae29d..7e5d01508 100644
--- a/documentation/en/cli-lotus-miner.md
+++ b/documentation/en/cli-lotus-miner.md
@@ -7,7 +7,7 @@ USAGE:
    lotus-miner [global options] command [command options] [arguments...]
 
 VERSION:
-   1.18.1
+   1.18.2
 
 COMMANDS:
    init     Initialize a lotus miner repo
diff --git a/documentation/en/cli-lotus-worker.md b/documentation/en/cli-lotus-worker.md
index 98bbf713d..277eb8597 100644
--- a/documentation/en/cli-lotus-worker.md
+++ b/documentation/en/cli-lotus-worker.md
@@ -7,7 +7,7 @@ USAGE:
    lotus-worker [global options] command [command options] [arguments...]
 
 VERSION:
-   1.18.1
+   1.18.2
 
 COMMANDS:
    run         Start lotus worker
diff --git a/documentation/en/cli-lotus.md b/documentation/en/cli-lotus.md
index 8d2a01bc6..4c1709bb3 100644
--- a/documentation/en/cli-lotus.md
+++ b/documentation/en/cli-lotus.md
@@ -7,7 +7,7 @@ USAGE:
    lotus [global options] command [command options] [arguments...]
 
 VERSION:
-   1.18.1
+   1.18.2
 
 COMMANDS:
    daemon   Start a lotus daemon process
diff --git a/storage/pipeline/input.go b/storage/pipeline/input.go
index 631e84455..7b5b8c600 100644
--- a/storage/pipeline/input.go
+++ b/storage/pipeline/input.go
@@ -443,6 +443,9 @@ func (m *Sealing) updateInput(ctx context.Context, sp abi.RegisteredSealProof) e
 		if err != nil {
 			return 0, big.Zero(), err
 		}
+		if onChainInfo == nil {
+			return 0, big.Zero(), xerrors.Errorf("sector info for sector %d not found", sn)
+		}
 		memo[sn] = struct {
 			e abi.ChainEpoch
 			p abi.TokenAmount
@@ -488,10 +491,6 @@ func (m *Sealing) updateInput(ctx context.Context, sp abi.RegisteredSealProof) e
 				continue
 			}
 			if !ok {
-				exp, _, _ := getExpirationCached(sector.number)
-
-				// todo move this log into checkDealAssignable, make more detailed about the reason
-				log.Debugf("CC update sector %d cannot fit deal, expiration %d before deal end epoch %d", id, exp, piece.deal.DealProposal.EndEpoch)
 				continue
 			}
 
diff --git a/storage/pipeline/sealing.go b/storage/pipeline/sealing.go
index 6caa9ddc6..0fadb6131 100644
--- a/storage/pipeline/sealing.go
+++ b/storage/pipeline/sealing.go
@@ -142,8 +142,21 @@ type openSector struct {
 }
 
 func (o *openSector) checkDealAssignable(piece *pendingPiece, expF expFn) (bool, error) {
+	log := log.With(
+		"sector", o.number,
+
+		"deal", piece.deal.DealID,
+		"dealEnd", piece.deal.DealProposal.EndEpoch,
+		"dealStart", piece.deal.DealProposal.StartEpoch,
+		"dealClaimEnd", piece.claimTerms.claimTermEnd,
+
+		"lastAssignedDealEnd", o.lastDealEnd,
+		"update", o.ccUpdate,
+	)
+
 	// if there are deals assigned, check that no assigned deal expires after termMax
 	if o.lastDealEnd > piece.claimTerms.claimTermEnd {
+		log.Debugw("deal not assignable to sector", "reason", "term end beyond last assigned deal end")
 		return false, nil
 	}
 
@@ -153,15 +166,26 @@ func (o *openSector) checkDealAssignable(piece *pendingPiece, expF expFn) (bool,
 	}
 	sectorExpiration, _, err := expF(o.number)
 	if err != nil {
+		log.Debugw("deal not assignable to sector", "reason", "error getting sector expiranion", "error", err)
 		return false, err
 	}
 
+	log = log.With(
+		"sectorExpiration", sectorExpiration,
+	)
+
 	// check that in case of upgrade sector, it's expiration isn't above deals claim TermMax
 	if sectorExpiration > piece.claimTerms.claimTermEnd {
+		log.Debugw("deal not assignable to sector", "reason", "term end beyond sector expiration")
 		return false, nil
 	}
 
-	return sectorExpiration >= piece.deal.DealProposal.EndEpoch, nil
+	if sectorExpiration < piece.deal.DealProposal.EndEpoch {
+		log.Debugw("deal not assignable to sector", "reason", "sector expiration less than deal expiration")
+		return false, nil
+	}
+
+	return true, nil
 }
 
 type pieceAcceptResp struct {