For a couple of years it's been no secret that chef Joshua Skenes was aiming to make Saison the first Michelin three-star restaurant in San Francisco proper. Today, he got his wish, along with fellow S.F. chef Corey Lee, whose restaurant Benu also rises to three-star glory with the release of Michelin's 2015 Guide to the Bay Area.

For a while after the guide launched in the Bay Area in 2006, only The French Laundry held that honor, but since the 2011 guide it's been held by another Napa spot, The Restaurant at Meadowood. Three Michelin stars are something that chefs the world over strive to attain, and the guidebook's credibility in the food world lends serious weight to this rating, which is held by only a few dozen restaurants in Europe, Asia, and North America. It reflects, in the eyes of Michelin inspectors, the utmost in refinement, originality, luxury, and consistency in the modern food world.

Michelin employs several anonymous, Bay Area-based "inspectors" who spend the year scouring the Bay Area and returning to familiar restaurants to rate their ongoing quality and consistency, concentrating primarily on the food alone. Additionally, inspectors from other locales around the world, including Europe and Japan, are brought in to offer their own opinions, and to compare star ratings on an international playing field.

Critics  especially in France where the guidebook originated  say that Michelin's standards and tastes are antiquated, especially in a world where most modern diners have been rejecting the staid, tablecloth'd, old-world style of a traditional Michelin-starred dining room in favor of more casual ways of eating. Still, though, fine dining continues evolving  perhaps nowhere more notably in the last few years than here in San Francisco  and it remains the arena in which chefs push culinary boundaries and invent new ways to showcase flavors and ingredients.

Also notable among the changes in this year's guide, 25-year-old Acquerello and its executive chef Suzette Gresham rises to two stars, after holding one star for the past seven years of the guide. This is big, too, because Gresham becomes the first American-born female chef to earn two Michelin stars, and only the third female chef in the country to get this honor, after Dominique Crenn did two years ago.**

There are two new sushi spots in the city that join the one-star ranks as well: Kusakabe in the Financial District, which Michael Bauer raved about earlier this year; and Maruya in the Mission which, sadly, just lost both of its opening chefs  an announcement that arrived the very day that this major honor did, and might just make the management think twice about letting master sushi chefs Masaki Sasaki and Hide Sueyoshi walk away so easily.

And, despite the fire that's kept it closed since July, Manresa remains at the 2-star level in the guide. The restaurant is expected to reopen by December.

Below, the full star ranking. The complete 2015 guidebook will be available for purchase starting tomorrow online or at your local bookseller.

3 stars:

Benu, San Francisco

The French Laundry, Yountville

The Restaurant at Meadowood, St. Helena

Saison, San Francisco

2 stars:

Acquerello, San Francisco

Atelier Crenn, San Francisco

Baumé, Palo Alto

Coi, San Francisco

Manresa, Los Gatos

Quince, San Francisco

1 star:

All Spice, San Mateo

Ame, San Francisco

Auberge du Soleil, Rutherford

Aziza, San Francisco

Bouchon, Yountville

Boulevard, San Francisco

Campton Place, San Francisco

Chez TJ, Mountain View

Commis, Oakland

Farmhouse Inn & Restaurant, Forestville

Gary Danko, San Francisco

Keiko a Nob Hill, San Francisco

Kusakabe, San Francisco *

La Folie, San Francisco

La Toque, Napa

Luce, San Francisco

Madera, Menlo Park

Madrona Manor, Healdsburg

Maruya, San Francisco *

Michael Mina, San Francisco

Plumed Horse, Saratoga

Solbar, Calistoga

Sons & Daughters, San Francisco

SPQR, San Francisco

Spruce, San Francisco

State Bird Provisions, San Francisco

Terra, St. Helena

Terrapin Creek, Bodega Bay

The Village Pub, Woodside

Wakuriya, San Mateo

* Indicates a new addition to the star ranks in the 2015 guide.

** Emma Bengtsson, the Swedish-born executive chef at New York's Aquavit, became the second female chef in the U.S. to earn two stars this year. It's also notable that the Bay Area is home to the first two American-born male chefs ever to earn three stars, Thomas Keller and Christopher Kostow.

Previously: Quince Rises to Two Stars, State Bird Earns One, And Other Michelin Restaurant Updates for San Francisco

Coqueta, Kin Khao, Anchor Oyster Bar Among New Michelin Bib Gourmand Picks For 2015