Here's my updated list:
Beginning oldies (1984-1989)/B.M. (Before Metalcore):
1984: Voivod - War and Pain
1985: Watchtower - Energetic Disassembly
1986: Dark Angel - Darkness Descends
1987: Voivod - Killing Technology
1988: Sadus - Illusions
1989: Godflesh - Streetcleaner
Old golden classics and millennium transition highlights (1990-2001)/Metalcore's humble beginnings and light of day-seeing classics:
1990: Rorschach - Remain Sedate
1991: Old - Lo Flux Tube
1992: Sadus - A Vision of Misery
1993: Old - The Musical Dimensions of Sleastak
1994: Circle of Dust - Brainchild
1995: Waltari - Big Bang
1996: Red Harvest - HyBreed
1997: Waltari - Space Avenue
1998: Embodyment - Embrace the Eternal
1999: Botch - We Are The Romans
2000: Extol - Undeceived
2001: Candiria - 300 Percent Density
Modern favorites (2002-2013)/Rise of the full Revolution:
2002: Red Harvest - Sick Transit Gloria Mundi
2003: Animosity - Shut It Down
2004: ISIS – Panopticon
2005: Trivium - Ascendancy
2006: Dog Fashion Disco - Adultery
2007: Dethklok - The Dethalbum
2008: In This Moment - The Dream
2009: Vektor - Black Future
2010: Whitechapel - A New Era of Corruption
2011: Trivium - In Waves
2012: Bury Tomorrow - The Union of Crowns
2013: Dethklok - The Doomstar Requiem: A Klok Opera
The best of the most recent (2014-present)/A greater new uprising:
2014: The Acacia Strain - Coma Witch
2015: Sikth - Opacities
2016: Insomnium - Winter's Gate
2017: Brendon Small - II: Become the Storm
2018: Fit for a King - Dark Skies
2019: Northlane - Alien
2020: Code Orange - Underneath
2021: Trivium - In the Court of the Dragon
2022: Lorna Shore - Pain Remains
2023 so far: Dødheimsgard - Black Medium Current
2023 albums I'm looking forward to getting:
Atreyu - The Moment You Find Your Flame
Dethklok - Dethalbum IV/Metalocalypse: Army of the Doomstar
Asking Alexandria - Where Do We Go from Here?
The Word Alive - Hard Rest
Polaris - Fatalism
Code Orange - The Above
Of Mice & Men - Tether
Beartooth - The Surface
In This Moment - Godmode
Paradise Lost - Icon 30 (revisiting this band for a 30th anniversary album recording)