diff --git a/.github/actions/spelling/allow/allow.txt b/.github/actions/spelling/allow/allow.txt
index 2fdea983d..35742a611 100644
--- a/.github/actions/spelling/allow/allow.txt
+++ b/.github/actions/spelling/allow/allow.txt
@@ -1,9 +1,15 @@
-Apc
 apc
+calt
+ccmp
+changelog
+cybersecurity
+Apc
 clickable
+clig
+copyable
 dalet
-Dcs
 dcs
+Dcs
 dialytika
 dje
 downside
@@ -11,7 +17,10 @@ downsides
 dze
 dzhe
 Enum'd
+Fitt
+formattings
 ftp
+fvar
 geeksforgeeks
 ghe
 gje
@@ -23,9 +32,17 @@ hyperlinks
 img
 It'd
 kje
+liga
 lje
+locl
+lorem
+Llast
+Lmid
+Lorigin
 maxed
+mkmk
 mru
+noreply
 nje
 ogonek
 ok'd
@@ -33,18 +50,26 @@ overlined
 postmodern
 ptys
 qof
+qps
+rclt
 reimplementation
 reserialization
 reserialize
 reserializes
+rlig
 runtimes
 shcha
+slnt
 Sos
 timestamped
+TLDR
 tokenizes
 tonos
 tshe
+uiatextrange
 UIs
+und
+unregister
 versioned
 We'd
 wildcards
diff --git a/.github/actions/spelling/allow/apis.txt b/.github/actions/spelling/allow/apis.txt
index d4aa706a0..19f5fb487 100644
--- a/.github/actions/spelling/allow/apis.txt
+++ b/.github/actions/spelling/allow/apis.txt
@@ -1,15 +1,21 @@
 ACCEPTFILES
 ACCESSDENIED
+alignas
 alignof
+APPLYTOSUBMENUS
 bitfield
 bitfields
+BUILDBRANCH
+BUILDMSG
 BUILDNUMBER
+BYPOSITION
 charconv
 CLASSNOTAVAILABLE
 cmdletbinding
 COLORPROPERTY
 colspan
 COMDLG
+comparand
 cstdint
 CXICON
 CYICON
@@ -19,9 +25,11 @@ DERR
 dlldata
 DONTADDTORECENT
 DWORDLONG
+enumset
 environstrings
 EXPCMDFLAGS
 EXPCMDSTATE
+filetime
 FILTERSPEC
 FORCEFILESYSTEM
 FORCEMINIMIZE
@@ -44,6 +52,7 @@ IBind
 IBox
 IClass
 IComparable
+IComparer
 IConnection
 ICustom
 IDialog
@@ -57,6 +66,8 @@ IObject
 iosfwd
 IPackage
 IPeasant
+isspace
+ISetup
 IStorage
 istream
 IStringable
@@ -64,26 +75,40 @@ ITab
 ITaskbar
 IUri
 IVirtual
+KEYSELECT
 LCID
 llabs
 llu
 localtime
 lround
 LSHIFT
+MENUCOMMAND
+MENUDATA
+MENUINFO
+memicmp
+mptt
+mov
 msappx
 MULTIPLEUSE
 NCHITTEST
 NCLBUTTONDBLCLK
 NCRBUTTONDBLCLK
+NIF
+NIN
 NOAGGREGATION
 NOASYNC
 NOCHANGEDIR
 NOPROGRESS
 NOREDIRECTIONBITMAP
 NOREPEAT
+NOTIFYBYPOS
+NOTIFYICON
+NOTIFYICONDATA
 ntprivapi
 oaidl
 ocidl
+ODR
+offsetof
 osver
 OSVERSIONINFOEXW
 otms
@@ -92,6 +117,7 @@ overridable
 PAGESCROLL
 PICKFOLDERS
 pmr
+rcx
 REGCLS
 RETURNCMD
 rfind
@@ -100,41 +126,54 @@ RSHIFT
 schandle
 semver
 serializer
+SETVERSION
 SHELLEXECUTEINFOW
 shobjidl
 SHOWMINIMIZED
+SHOWTIP
 SINGLEUSE
 SIZENS
 smoothstep
 snprintf
 spsc
 sregex
+SRWLOC
+SRWLOCK
 STDCPP
 STDMETHOD
 strchr
+strcpy
 streambuf
+strtoul
 Stubless
 Subheader
 Subpage
 syscall
+TASKBARCREATED
 TBPF
 THEMECHANGED
+tlg
 tmp
 tolower
+toupper
 TTask
 TVal
+UChar
 UPDATEINIFILE
 userenv
 wcsstr
 wcstoui
 winmain
+wmemcmp
 wpc
 wsregex
 wwinmain
+xchg
 XDocument
 XElement
 xfacet
 xhash
+XIcon
 xiosbase
 xlocale
 xlocbuf
@@ -143,9 +182,13 @@ xlocmes
 xlocmon
 xlocnum
 xloctime
+XMax
 xmemory
 XParse
+xpath
 xstddef
 xstring
 xtree
 xutility
+YIcon
+YMax
diff --git a/.github/actions/spelling/allow/fonts.txt b/.github/actions/spelling/allow/fonts.txt
index 0af346b01..c9931b2fc 100644
--- a/.github/actions/spelling/allow/fonts.txt
+++ b/.github/actions/spelling/allow/fonts.txt
@@ -7,3 +7,4 @@ Iosevka
 MDL
 Monofur
 Segoe
+wght
diff --git a/.github/actions/spelling/allow/math.txt b/.github/actions/spelling/allow/math.txt
index 1482aedab..bf8960f00 100644
--- a/.github/actions/spelling/allow/math.txt
+++ b/.github/actions/spelling/allow/math.txt
@@ -1,3 +1,11 @@
+atan
+CPrime
+HBar
+HPrime
 isnan
+LPrime
+LStep
 powf
+RSub
 sqrtf
+ULP
diff --git a/.github/actions/spelling/allow/microsoft.txt b/.github/actions/spelling/allow/microsoft.txt
index a019ef092..a96131468 100644
--- a/.github/actions/spelling/allow/microsoft.txt
+++ b/.github/actions/spelling/allow/microsoft.txt
@@ -1,5 +1,6 @@
 ACLs
 ADMINS
+advapi
 altform
 altforms
 appendwttlogging
@@ -7,6 +8,7 @@ appx
 appxbundle
 appxerror
 appxmanifest
+ATL
 backplating
 bitmaps
 BOMs
@@ -14,6 +16,7 @@ CPLs
 cpptools
 cppvsdbg
 CPRs
+cryptbase
 DACL
 DACLs
 diffs
@@ -23,14 +26,20 @@ DTDs
 DWINRT
 enablewttlogging
 Intelli
+IVisual
 LKG
+LOCKFILE
+Lxss
 mfcribbon
 microsoft
 microsoftonline
+MSAA
 msixbundle
+MSVC
 muxc
 netcore
 osgvsowi
+PFILETIME
 pgc
 pgo
 pgosweep
@@ -38,10 +47,14 @@ powerrename
 powershell
 propkey
 pscustomobject
+QWORD
+regedit
 robocopy
 SACLs
+sdkddkver
 Shobjidl
 Skype
+SRW
 sxs
 Sysinternals
 sysnative
@@ -56,6 +69,7 @@ Virtualization
 visualstudio
 vscode
 VSTHRD
+winsdkver
 wlk
 wslpath
 wtl
diff --git a/.github/actions/spelling/allow/names.txt b/.github/actions/spelling/allow/names.txt
index b4fe3abae..3635d3723 100644
--- a/.github/actions/spelling/allow/names.txt
+++ b/.github/actions/spelling/allow/names.txt
@@ -31,6 +31,7 @@ Kourosh
 kowalczyk
 leonmsft
 Lepilleur
+lhecker
 lukesampson
 Manandhar
 mbadolato
@@ -52,6 +53,7 @@ oldnewthing
 opengl
 osgwiki
 pabhojwa
+panos
 paulcam
 pauldotknopf
 PGP
@@ -66,6 +68,7 @@ sonpham
 stakx
 thereses
 Walisch
+Wellons
 Wirt
 Wojciech
 zadjii
diff --git a/.github/actions/spelling/expect/alphabet.txt b/.github/actions/spelling/expect/alphabet.txt
index bb8a43b36..47663b0d0 100644
--- a/.github/actions/spelling/expect/alphabet.txt
+++ b/.github/actions/spelling/expect/alphabet.txt
@@ -2,10 +2,7 @@ AAAa
 AAAAA
 AAAAAAAAAAAAA
 AAAAAABBBBBBCCC
-AAAAABBBBBBBCCC
 AAAAABBBBBBCCC
-AAAAABCCCCCCCCC
-AAAAADCCCCCCCCC
 abcd
 abcd
 abcde
@@ -27,6 +24,7 @@ BBBBBBBBBBBBBBDDDD
 BBBBBCCC
 BBBBCCCCC
 BBGGRR
+CCE
 EFG
 EFGh
 QQQQQQQQQQABCDEFGHIJ
diff --git a/.github/actions/spelling/expect/expect.txt b/.github/actions/spelling/expect/expect.txt
index 4a19919cc..dccd6d740 100644
--- a/.github/actions/spelling/expect/expect.txt
+++ b/.github/actions/spelling/expect/expect.txt
@@ -14,7 +14,6 @@ ACTIVEBORDER
 ACTIVECAPTION
 adaa
 ADDALIAS
-ADDB
 ADDREF
 addressof
 ADDSTRING
@@ -50,6 +49,7 @@ APARTMENTTHREADED
 APCs
 api
 APIENTRY
+apimswincoresynchl
 apiset
 APPBARDATA
 appconsult
@@ -105,6 +105,7 @@ autoscrolling
 Autowrap
 AVerify
 AVI
+AVX
 awch
 azuredevopspodcast
 azzle
@@ -114,6 +115,7 @@ Backgrounder
 backgrounding
 backport
 backstory
+barbaz
 Batang
 baz
 Bazz
@@ -163,9 +165,11 @@ BPBF
 bpp
 BPPF
 branchconfig
+brandings
 BRK
 Browsable
 bsearch
+Bspace
 bstr
 BTNFACE
 buf
@@ -183,12 +187,13 @@ bytebuffer
 cac
 cacafire
 callee
-cang
 capslock
 CARETBLINKINGENABLED
+carlos
 CARRIAGERETURN
 cascadia
 cassert
+castsi
 catid
 cazamor
 CBash
@@ -267,9 +272,12 @@ cmder
 CMDEXT
 Cmdlet
 cmdline
+cmh
 CMOUSEBUTTONS
 cmp
+cmpeq
 cmt
+cmw
 cmyk
 CNL
 cnt
@@ -379,6 +387,7 @@ cplusplus
 cpp
 CPPCORECHECK
 cppcorecheckrules
+cppm
 cpprest
 cpprestsdk
 cppwinrt
@@ -401,11 +410,13 @@ csbiex
 csharp
 CSHORT
 CSIDL
+Cspace
 csproj
 Csr
 csrmsg
 CSRSS
 csrutil
+css
 cstdarg
 cstddef
 cstdio
@@ -496,7 +507,7 @@ DEADCHAR
 dealloc
 Debian
 debolden
-debounce
+debugtype
 DECALN
 DECANM
 DECAUPSS
@@ -504,6 +515,8 @@ DECAWM
 DECCKM
 DECCOLM
 DECDHL
+decdld
+DECDLD
 DECDWL
 DECEKBD
 DECID
@@ -524,6 +537,7 @@ DECRC
 DECREQTPARM
 DECRLM
 DECRQM
+DECRQSS
 DECRST
 DECSASD
 DECSC
@@ -544,6 +558,7 @@ DECSTR
 DECSWL
 DECTCEM
 Dedupe
+deduplicate
 deduplicated
 DEFAPP
 DEFAULTBACKGROUND
@@ -653,6 +668,7 @@ dwriteglyphrundescriptionclustermap
 dxgi
 dxgidwm
 dxinterop
+dxsm
 dxttbmp
 eachother
 eae
@@ -756,7 +772,6 @@ filepath
 FILESUBTYPE
 FILESYSPATH
 filesystem
-FILETIME
 FILETYPE
 fileurl
 FILEW
@@ -772,11 +787,13 @@ FINDSTRINGEXACT
 FINDUP
 FIter
 FIXEDCONVERTED
+FIXEDFILEINFO
 Flg
 flyout
 fmodern
 fmtarg
 fmtid
+FNV
 FOLDERID
 FONTCHANGE
 fontdlg
@@ -785,6 +802,7 @@ FONTENUMPROC
 FONTFACE
 FONTFAMILY
 FONTHEIGHT
+FONTINFO
 fontlist
 FONTOK
 FONTSIZE
@@ -794,6 +812,7 @@ FONTTYPE
 FONTWEIGHT
 FONTWIDTH
 FONTWINDOW
+fooo
 forceinline
 FORCEOFFFEEDBACK
 FORCEONFEEDBACK
@@ -897,6 +916,7 @@ github
 gitlab
 gle
 globals
+GLYPHENTRY
 gmail
 GMEM
 GNUC
@@ -945,6 +965,7 @@ hdrstop
 HEIGHTSCROLL
 hfile
 hfont
+hfontresource
 hglobal
 hhh
 HHmm
@@ -980,7 +1001,7 @@ hostlib
 Hostx
 HPA
 HPAINTBUFFER
-hpcon
+HPCON
 hpj
 hpp
 HPR
@@ -1019,6 +1040,7 @@ IAction
 IApi
 IApplication
 IBase
+ICache
 icacls
 iccex
 icch
@@ -1112,6 +1134,7 @@ interop
 interoperability
 inthread
 intptr
+intrin
 intsafe
 INVALIDARG
 INVALIDATERECT
@@ -1164,6 +1187,7 @@ IWin
 IWindow
 IXaml
 IXMP
+ixx
 jconcpp
 JOBOBJECT
 JOBOBJECTINFOCLASS
@@ -1208,6 +1232,7 @@ KLF
 KLMNO
 KLMNOPQRST
 KLMNOPQRSTQQQQQ
+KPRIORITY
 KVM
 langid
 LANGUAGELIST
@@ -1256,6 +1281,7 @@ lnkd
 lnkfile
 LNM
 LOADONCALL
+loadu
 LOBYTE
 localappdata
 localhost
@@ -1263,6 +1289,7 @@ locsrc
 locstudio
 Loewen
 LOGFONT
+LOGFONTA
 LOGFONTW
 logissue
 lowercased
@@ -1367,7 +1394,6 @@ MEASUREITEM
 megamix
 memallocator
 memcmp
-memcopy
 memcpy
 memmove
 memset
@@ -1417,6 +1443,7 @@ MOUSEFIRST
 MOUSEHWHEEL
 MOUSEMOVE
 mousewheel
+movemask
 MOVESTART
 msb
 msbuild
@@ -1443,11 +1470,13 @@ MSVCRTD
 MSVS
 msys
 msysgit
+MTSM
 mui
 Mul
 multiline
 munged
 munges
+murmurhash
 mutex
 mutexes
 muxes
@@ -1498,6 +1527,7 @@ nfe
 nlength
 Nls
 NLSMODE
+nnn
 NOACTIVATE
 NOAPPLYNOW
 NOCLIP
@@ -1578,6 +1608,7 @@ NTVDM
 ntverp
 NTWIN
 nuget
+nullability
 nullness
 nullonfailure
 nullopt
@@ -1612,6 +1643,7 @@ onecoreuapuuid
 onecoreuuid
 ONECOREWINDOWS
 onehalf
+oneseq
 ONLCR
 openbash
 opencode
@@ -1642,6 +1674,7 @@ oss
 ostream
 ostringstream
 ouicompat
+OUnter
 outdir
 outfile
 Outof
@@ -1652,6 +1685,7 @@ Outptr
 OVERLAPPEDWINDOW
 OWNDC
 OWNERDRAWFIXED
+packagename
 packageuwp
 PACKCOORD
 PACKVERSION
@@ -1676,6 +1710,7 @@ pcch
 PCCHAR
 PCCONSOLE
 PCD
+pcg
 pch
 PCHAR
 PCIDLIST
@@ -1771,6 +1806,7 @@ POSX
 POSXSCROLL
 POSYSCROLL
 ppci
+PPEB
 ppf
 ppguid
 ppidl
@@ -1849,7 +1885,6 @@ psp
 PSPCB
 psr
 PSTR
-psuedoconsole
 psz
 ptch
 ptr
@@ -1922,6 +1957,7 @@ realloc
 reamapping
 rects
 redef
+redefinable
 Redir
 redirector
 redist
@@ -1943,7 +1979,7 @@ REGSTR
 reingest
 Relayout
 RELBINPATH
-Remoting
+remoting
 renamer
 renderengine
 rendersize
@@ -1964,11 +2000,12 @@ resx
 retval
 rfa
 rfc
+rfid
 rftp
 rgb
 rgba
+RGBCOLOR
 rgbi
-rgch
 rgci
 rgfae
 rgfte
@@ -1985,9 +2022,11 @@ rhs
 RIGHTALIGN
 RIGHTBUTTON
 riid
+Rike
 RIPMSG
 RIS
 RMENU
+rng
 roadmap
 robomac
 roundtrip
@@ -2033,7 +2072,6 @@ scanline
 schemename
 SCL
 scm
-scprintf
 SCRBUF
 SCRBUFSIZE
 screenbuffer
@@ -2044,8 +2082,6 @@ scriptload
 Scrollable
 scrollback
 scrollbar
-Scrolldown
-Scrolldownpage
 Scroller
 SCROLLFORWARD
 SCROLLINFO
@@ -2053,8 +2089,6 @@ scrolllock
 scrolloffset
 SCROLLSCALE
 SCROLLSCREENBUFFER
-Scrollup
-Scrolluppage
 scursor
 sddl
 sdeleted
@@ -2069,6 +2103,7 @@ selectany
 SELECTEDFONT
 SELECTSTRING
 Selfhosters
+SERIALIZERS
 SERVERDLL
 SETACTIVE
 SETBUDDYINT
@@ -2140,6 +2175,7 @@ SIGDN
 SINGLEFLAG
 SINGLETHREADED
 siup
+sixel
 SIZEBOX
 sizeof
 SIZESCROLL
@@ -2211,6 +2247,7 @@ stoi
 stol
 stoul
 stoutapot
+Stri
 strikethrough
 stringstream
 STRINGTABLE
@@ -2243,6 +2280,7 @@ SWMR
 SWP
 swprintf
 SYMED
+symlink
 SYNCPAINT
 sys
 syscalls
@@ -2309,7 +2347,6 @@ testmddefinition
 testmode
 testname
 testnameprefix
-testnetv
 TESTNULL
 testpass
 testpasses
@@ -2345,7 +2382,6 @@ TITLEISLINKNAME
 TJson
 TLambda
 TLEN
-Tlg
 Tlgdata
 TMAE
 TMPF
@@ -2420,7 +2456,6 @@ uapadmin
 UAX
 ubuntu
 ucd
-ucd
 ucdxml
 uch
 UCHAR
@@ -2529,6 +2564,7 @@ vcvarsall
 vcxitems
 vcxproj
 vec
+vectorized
 VERCTRL
 versioning
 VERTBAR
@@ -2546,13 +2582,13 @@ VMs
 VPA
 VPATH
 VPR
-VPrintf
 VProc
 VRaw
 VREDRAW
 vsc
 vscprintf
 VSCROLL
+vsdevshell
 vsinfo
 vsnprintf
 vso
@@ -2661,6 +2697,7 @@ WINDOWPOSCHANGING
 windowproc
 windowrect
 windowsapp
+windowsdeveloper
 windowsinternalstring
 WINDOWSIZE
 windowsx
@@ -2692,6 +2729,7 @@ wixproj
 wline
 wlinestream
 wmain
+wmemory
 WMSZ
 wnd
 WNDALLOC
@@ -2747,6 +2785,7 @@ WTo
 wtof
 wtoi
 WTs
+WTSOFTFONT
 wtw
 wtypes
 Wubi
@@ -2773,10 +2812,10 @@ XCount
 xdy
 XEncoding
 xes
-Xes
 xff
 XFile
 XFORM
+xIcon
 XManifest
 XMath
 XMFLOAT
@@ -2784,8 +2823,6 @@ xml
 xmlns
 xor
 xorg
-xorg
-Xpath
 XPosition
 XResource
 xsd
@@ -2811,6 +2848,7 @@ YCast
 YCENTER
 YCount
 YDPI
+yIcon
 yml
 YOffset
 YPosition
@@ -2818,6 +2856,7 @@ YSize
 YSubstantial
 YVIRTUALSCREEN
 YWalk
+zamora
 ZCmd
 ZCtrl
 zsh
diff --git a/.github/actions/spelling/expect/web.txt b/.github/actions/spelling/expect/web.txt
index f50d31a6e..826edf1af 100644
--- a/.github/actions/spelling/expect/web.txt
+++ b/.github/actions/spelling/expect/web.txt
@@ -1,5 +1,7 @@
 http
 www
+easyrgb
+php
 ecma
 rapidtables
 WCAG
@@ -11,6 +13,7 @@ leonerd
 fixterms
 winui
 appshellintegration
+mdtauk
 cppreference
 gfycat
 Guake
diff --git a/.github/actions/spelling/patterns/patterns.txt b/.github/actions/spelling/patterns/patterns.txt
index bee4446d4..47f902f90 100644
--- a/.github/actions/spelling/patterns/patterns.txt
+++ b/.github/actions/spelling/patterns/patterns.txt
@@ -23,3 +23,5 @@ VERIFY_ARE_EQUAL\(L"[^"]+"
 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789\+/"
 std::memory_order_[\w]+
 D2DERR_SHADER_COMPILE_FAILED
+TIL_FEATURE_[0-9A-Z_]+
+vcvars\w*
diff --git a/.github/workflows/spelling.yml b/.github/workflows/spelling2.yml
similarity index 59%
rename from .github/workflows/spelling.yml
rename to .github/workflows/spelling2.yml
index cbc72ae28..a44931267 100644
--- a/.github/workflows/spelling.yml
+++ b/.github/workflows/spelling2.yml
@@ -1,19 +1,20 @@
+# spelling.yml is blocked per https://github.com/check-spelling/check-spelling/security/advisories/GHSA-g86g-chm8-7r2p
 name: Spell checking
 on:
   pull_request_target:
   push:
 
 jobs:
-  build:
+  spelling:
     name: Spell checking
     runs-on: ubuntu-latest
     steps:
     - name: checkout-merge
       if: "contains(github.event_name, 'pull_request')"
-      uses: actions/checkout@v2.0.0
+      uses: actions/checkout@v2
       with:
         ref: refs/pull/${{github.event.pull_request.number}}/merge
     - name: checkout
       if: "!contains(github.event_name, 'pull_request')"
-      uses: actions/checkout@v2.0.0
-    - uses: check-spelling/check-spelling@v0.0.18
+      uses: actions/checkout@v2
+    - uses: check-spelling/check-spelling@v0.0.19